diff --git a/frontend/src/js/component/wb-name-and-uuid.js b/frontend/src/js/component/wb-name-and-uuid.js
index 4d02be5..5927681 100644
--- a/frontend/src/js/component/wb-name-and-uuid.js
+++ b/frontend/src/js/component/wb-name-and-uuid.js
@@ -75,7 +75,7 @@ class WBNameAndUuid extends Component {
     }
   }
 
-  render({ uuid }, { error, item }) {
+  render({ uuid, onLinkClicked }, { error, item }) {
     if (!uuid)
       return (
         <div><i>{ String(uuid) }</i></div>
@@ -85,7 +85,7 @@ class WBNameAndUuid extends Component {
       <div>
         <div>
           { error ? error : (item ? (
-            <a href={ urlForObject(item) }>{ arvadosObjectName(item) }</a>
+            <a href={ urlForObject(item) } onclick={ onLinkClicked }>{ arvadosObjectName(item) }</a>
           ) : 'Loading...') }
         </div>
         <div>
diff --git a/frontend/src/js/dialog/wb-toolbox-dialog.js b/frontend/src/js/dialog/wb-toolbox-dialog.js
index 4db2a06..d5f4527 100644
--- a/frontend/src/js/dialog/wb-toolbox-dialog.js
+++ b/frontend/src/js/dialog/wb-toolbox-dialog.js
@@ -8,6 +8,7 @@ class WBToolboxDialog extends Component {
   constructor(...args) {
     super(...args);
     this.state.rows = [];
+    this.state.selectedValues = {};
   }
 
   componentDidMount() {
@@ -20,8 +21,9 @@ class WBToolboxDialog extends Component {
   }
 
   fetchRows() {
-    const { items } = this.props;
+    const { items, id, selectMany, onAccepted } = this.props;
     const { arvHost, arvToken } = this.props.app.state;
+    const { selectedValues } = this.state;
     let prom = wbFetchObjects(arvHost, arvToken,
       items);
     let lookup;
@@ -31,22 +33,46 @@ class WBToolboxDialog extends Component {
     let ownerLookup;
     prom = prom.then(lkup => (ownerLookup = lkup));
     prom = prom.then(() => {
-      const rows = items.map(uuid => {
+      const rows = items.map((uuid, idx) => {
         const it = lookup[uuid];
         const ow = ownerLookup[it.owner_uuid];
-        return [
-          ( <div><input type="checkbox" /></div> ),
-          ( <WBNameAndUuid uuid={ uuid } lookup={ lookup } /> ),
+        let r = [];
+        if (selectMany)
+          r.push();
+        r = r.concat([
+          selectMany ? (
+            <div>
+              <input type="checkbox" checked={ (uuid in selectedValues) }
+                onChange={ e => {
+                if (e.target.value === 'on')
+                  selectedValues[uuid] = true;
+                else
+                  delete selectedValues[uuid];
+              } } /> { '\u00A0' }
+            </div>
+          ) : (
+            <button class="btn btn-outline-primary" title="Use"
+              onclick={ () => {
+                $('#' + id).modal('hide');
+                onAccepted(uuid);
+              } }>
+              <i class="fas fa-hand-pointer"></i>
+            </button>
+          ),
+          ( <WBNameAndUuid uuid={ uuid } lookup={ lookup }
+              onLinkClicked={ () => $('#' + id).modal('hide') } /> ),
           it.kind,
           wbFormatDate(it.created_at),
-          ( <WBNameAndUuid uuid={ it.owner_uuid } lookup={ ownerLookup } /> )
-        ];
+          ( <WBNameAndUuid uuid={ it.owner_uuid } lookup={ ownerLookup }
+              onLinkClicked={ () => $('#' + id).modal('hide') } /> )
+        ]);
+        return r;
       });
       this.setState({ rows });
     });
   }
 
-  render({ id }, { rows }) {
+  render({ id, selectMany, onAccepted, items, app }, { rows, selectedValues }) {
     return (
       <div class="modal" id={ id } tabindex="-1" role="dialog">
         <div class="modal-dialog modal-lg" role="document">
@@ -59,12 +85,52 @@ class WBToolboxDialog extends Component {
             </div>
 
             <div class="modal-body">
+              <div class="mb-2">
+                { selectMany ? (
+                  <button class="btn btn-outline-primary mr-2" onclick={ () => {
+                    items.map(uuid => (selectedValues[uuid] = true));
+                    this.fetchRows();
+                  } }>
+                    Select All
+                  </button>
+                ) : null }
+                { selectMany ? (
+                  <button class="btn btn-outline-primary mr-2" onclick={ () => {
+                    this.setState({ 'selectedValues' : {} });
+                    this.fetchRows();
+                  } }>
+                    Select None
+                  </button>
+                ) : null }
+                <button class="btn btn-outline-primary mr-2" onclick={ () => {
+                  app.clearToolbox();
+                  this.props.items = [];
+                  this.fetchRows();
+                } } >
+                  Clear Toolbox
+                </button>
+                <button class="btn btn-outline-primary mr-2" onclick={ () => {
+                  app.loadToolbox();
+                  this.props.items = app.state.toolboxItems;
+                  this.fetchRows();
+                } } >
+                  Refresh Toolbox
+                </button>
+              </div>
+
               <WBTable columns={ [ '', 'Name', 'Kind', 'Created At', 'Owner' ] }
                 rows={ rows } />
             </div>
 
             <div class="modal-footer">
-              <button type="button" class="btn btn-primary">Accept</button>
+              { selectMany ? (
+                <button type="button" class="btn btn-primary" onclick={
+                  () => {
+                    $('#' + id).modal('hide');
+                    onAccepted(items.filter(uuid => (uuid in selectedValues)));
+                  }
+                }>Accept</button>
+              ) : null }
               <button type="button" class="btn btn-secondary" data-dismiss="modal">Cancel</button>
             </div>
           </div>
@@ -74,4 +140,8 @@ class WBToolboxDialog extends Component {
   }
 }
 
+WBToolboxDialog.defaultProps = {
+  'onAccepted': () => {}
+};
+
 export default WBToolboxDialog;
diff --git a/frontend/src/js/page/wb-app.js b/frontend/src/js/page/wb-app.js
index d3c842c..eccf52b 100644
--- a/frontend/src/js/page/wb-app.js
+++ b/frontend/src/js/page/wb-app.js
@@ -19,8 +19,7 @@ class WBApp extends Component {
     this.state.arvToken = window.localStorage['arvToken'];
     if ('currentUser' in window.localStorage)
       this.state.currentUser = JSON.parse(window.localStorage['currentUser']);
-    this.state.toolboxItems = ('toolboxItems' in window.localStorage) ?
-      JSON.parse(window.localStorage['toolboxItems']) : [];
+    this.loadToolbox();
   }
 
   navbarItemUrl(item) {
@@ -51,6 +50,16 @@ class WBApp extends Component {
       JSON.stringify(this.state.toolboxItems);
   }
 
+  clearToolbox() {
+    this.state.toolboxItems = [];
+    delete window.localStorage['toolboxItems'];
+  }
+
+  loadToolbox() {
+    this.state.toolboxItems = ('toolboxItems' in window.localStorage) ?
+      JSON.parse(window.localStorage['toolboxItems']) : [];
+  }
+
   render() {
     return (
       <Router>
@@ -74,7 +83,7 @@ class WBApp extends Component {
 
         <WBWorkflowView path="/workflow/:uuid" app={ this } />
 
-        <WBLaunchWorkflowPage path="/workflow-launch/:workflowUuid/:projectUuid?" app={ this } />
+        <WBLaunchWorkflowPage path="/workflow-launch/:workflowUuid" app={ this } />
       </Router>
     );
   }
diff --git a/frontend/src/js/page/wb-launch-workflow-page.js b/frontend/src/js/page/wb-launch-workflow-page.js
index 7c64e86..fdc9713 100644
--- a/frontend/src/js/page/wb-launch-workflow-page.js
+++ b/frontend/src/js/page/wb-launch-workflow-page.js
@@ -1,4 +1,4 @@
-import { h, Component } from 'preact';
+import { h, Component, createRef } from 'preact';
 import WBNavbarCommon from 'wb-navbar-common';
 import WBArvadosCrumbs from 'wb-arvados-crumbs';
 import WBToolboxDialog from 'wb-toolbox-dialog';
@@ -8,27 +8,57 @@ import linkState from 'linkstate';
 function createInputsTemplate(workflow) {
   const g = JSON.parse(workflow.definition)['$graph'];
   const main = g.find(it => (it.id === '#main'));
-  /* let res = '';
+  let res = '';
   main.inputs.map(it => {
     let id = it.id.split('/');
     id = id[id.length - 1];
-    if (it.label) res += '  // ' + it.label + '\n';
-    if (it.doc) res += ' //' + it.doc + '\n';
-    res += '  ' + it.type
-    res += '\'' + it.id + '\': null'
-  }); */
-  let res = main.inputs.map(it => { it.value = null; return it; });
+    if (it.label) res += '    // ' + it.label + '\n';
+    if (it.doc) res += '    // ' + it.doc + '\n';
+    res += '    // Type: ' + ((typeof(it.type) === 'string') ?
+      it.type : JSON.stringify(it.type)) + '\n\n';
+    res += '    \'' + id + '\': \'\',\n\n';
+    //res += '    // ' + ' '.repeat(id.length) + '^^^^\n\n';
+  });
+  /* let res = main.inputs.map(it => { it.value = null; return it; });
   res = JSON.stringify(res, null, 2);
   res = res.split('\n');
   res = res.map((ln, i) => (i == 0 ? ln : '  ' + ln));
-  res = res.join('\n');
+  res = res.join('\n'); */
   return res;
 }
 
+function uuidsToCwlObjects(spec) {
+  if (typeof(spec) === 'string') {
+    if (/^[a-z0-9]{5}-[a-z0-9]{5}-[a-z0-9]{15}/.exec(spec)) {
+      return {
+        'class': 'Directory',
+        'location': 'keep:' + spec
+      };
+    } else if (/^[a-f0-9]{32}\+[0-9]+/.exec(spec)) {
+      return {
+        'class': 'Directory',
+        'location': 'keep:' + spec
+      };
+    } else {
+      return spec;
+    }
+  } else if (typeof(spec) === 'object') {
+    const res = (spec instanceof Array) ? [] : {};
+    Object.keys(spec).map(k => (res[k] = uuidsToCwlObjects(spec[k])));
+    return res;
+
+  } else {
+    return spec;
+  }
+}
+
 class WBLaunchWorkflowPage extends Component {
   constructor(...args) {
     super(...args);
-    this.state.toolboxDialogId = uuid.v4();
+    this.state.browseDialogId = uuid.v4();
+    this.state.insertDialogId = uuid.v4();
+    this.state.insertManyDialogId = uuid.v4();
+    this.inputsTextArea = createRef();
   }
 
   componentDidMount() {
@@ -39,24 +69,44 @@ class WBLaunchWorkflowPage extends Component {
       '/arvados/v1/workflows/' + workflowUuid);
     prom = prom.then(xhr => this.setState({
       'workflow': xhr.response,
-      'processName': xhr.response.name,
-      'processDescription': xhr.response.description,
-      'inputsFunctionText': '(() => {\n  return ' +
+      'defaultProcessName': xhr.response.name + ' ' + (new Date().toISOString()),
+      'defaultProcessDescription': xhr.response.description,
+      'inputsFunctionText': '(() => {\n  return {\n' +
         createInputsTemplate(xhr.response) +
-        ';\n})()'
+        '  };\n})()'
     }));
   }
 
-  render({ app, projectUuid, workflowUuid },
-    { workflow, processName, processDescription,
-    inputsFunctionText, toolboxDialogId }) {
+  render({ app, workflowUuid },
+    { workflow, projectUuid, processName, processDescription,
+    defaultProcessName, defaultProcessDescription,
+    inputsFunctionText, browseDialogId,
+    insertDialogId, insertManyDialogId,
+    inputsPreview }) {
 
     return (
       <div>
         <WBNavbarCommon app={ app } />
 
-        <WBToolboxDialog app={ app } id={ toolboxDialogId }
-          items={ app.state.toolboxItems } />
+        <WBToolboxDialog app={ app } id={ browseDialogId }
+          items={ app.state.toolboxItems } onAccepted={ value =>
+            this.setState({ 'projectUuid': value }) } />
+
+        <WBToolboxDialog app={ app } id={ insertDialogId }
+          items={ app.state.toolboxItems }
+          onAccepted={ value => {
+            const t = this.inputsTextArea.current;
+            const start = t.selectionStart;
+            const end = t.selectionEnd;
+            this.setState({
+              'inputsFunctionText': t.value.substr(0, start) + value +
+                t.value.substr(end)
+            });
+          } } />
+
+        <WBToolboxDialog app={ app } id={ insertManyDialogId }
+          items={ app.state.toolboxItems } selectMany={ true }
+          onAccepted={ values => alert(values) } />
 
         { workflow ?
           (<form class="container-fluid">
@@ -69,8 +119,24 @@ class WBLaunchWorkflowPage extends Component {
 
             <div class="form-group">
               <label for="projectUuid">Project UUID</label>
-              <input type="email" class="form-control" id="projectUuid" placeholder="Enter project uuid" />
-              <button class="btn btn-primary" onclick={ e => { e.preventDefault(); $('#' + toolboxDialogId).modal(); } }>Browse</button>
+
+              <div>
+                { projectUuid ? (
+                  <WBArvadosCrumbs app={ app } uuid={ projectUuid } />
+                ) : null }
+
+                <div class="input-group mb-3">
+                  <input type="text" class="form-control" id="projectUuid"
+                    placeholder="Enter Project UUID" aria-label="Project UUID"
+                    aria-describedby="button-addon2" value={ projectUuid }
+                    onChange={ linkState(this, 'projectUuid') } />
+                  <div class="input-group-append">
+                    <button class="btn btn-primary" type="button"
+                      id="button-addon2" onclick={ e => { e.preventDefault();
+                        $('#' + browseDialogId).modal(); } }>Browse</button>
+                  </div>
+                </div>
+              </div>
             </div>
 
             <div class="form-check">
@@ -81,22 +147,55 @@ class WBLaunchWorkflowPage extends Component {
             <div class="form-group">
               <label for="processName">Process Name</label>
               <input type="text" class="form-control" id="processName"
-                placeholder="Enter process name" value={ processName }
+                placeholder={ defaultProcessName } value={ processName }
                 onChange={ linkState(this, 'processName') }/>
             </div>
 
             <div class="form-group">
               <label for="processDescription">Process Description</label>
               <input type="text" class="form-control" id="processDescription"
-                placeholder="Enter process name" value={ processDescription }
+                placeholder={ defaultProcessDescription } value={ processDescription }
                 onChange={ linkState(this, 'processDescription') } />
             </div>
 
             <div class="form-group">
               <label for="inputs">Inputs</label>
-              <textarea class="form-control" id="inputs"
-                style="font-family: monospace;" rows="20"
-                value={ inputsFunctionText }></textarea>
+              <div>
+                <div class="mb-2">
+                  <button class="btn btn-primary mr-2" onclick={ e => {
+                    e.preventDefault();
+                    $('#' + insertDialogId).modal();
+                  } }>Insert</button>
+
+                  <button class="btn btn-primary mr-2" onclick={ e => {
+                    e.preventDefault();
+                    $('#' + insertManyDialogId).modal();
+                  } }>Insert Many</button>
+                </div>
+
+                <textarea class="form-control" ref={ this.inputsTextArea } id="inputs"
+                  style="font-family: monospace;" rows="20"
+                  value={ inputsFunctionText }
+                  onChange={ linkState(this, 'inputsFunctionText') }></textarea>
+
+                <div class="my-2">
+                  <button class="btn btn-primary" onclick={ e => {
+                    e.preventDefault();
+                    try {
+                      let inputsVal = eval(inputsFunctionText);
+                      inputsVal = uuidsToCwlObjects(inputsVal);
+                      this.setState({ 'inputsPreview': JSON.stringify(inputsVal, null, 2) });
+                    } catch (exc) {
+                      this.setState({ 'inputsPreview': exc });
+                    }
+                  } }>Preview</button>
+                </div>
+
+                <textarea class="form-control" readonly="readonly"
+                  style="font-family: monospace;" rows="10"
+                  value={ inputsPreview }></textarea>
+              </div>
+
             </div>
           </form>) : <div>Loading...</div> }
       </div>