diff --git a/appsscript.json b/appsscript.json
index b0cf53c..1f98df4 100644
--- a/appsscript.json
+++ b/appsscript.json
@@ -24,7 +24,7 @@
       "selectActions": [
         {
           "text": "Add documents from Nuxeo",
-          "runFunction": "getContextualAddOn"
+          "runFunction": "attachDocToComposeUI"
         }
       ],
       "draftAccess": "METADATA"
@@ -47,7 +47,7 @@
     "primaryColor": "#315df6"
   },
   "urlFetchWhitelist": [
-    "https://nightly.nuxeo.com/",
+    "https://*.nuxeo.com/",
     "https://*.nuxeocloud.com/",
     "https://*.cloud.nuxeo.com/"
   ]
diff --git a/src/ActionHandlers.js b/src/ActionHandlers.js
index e050080..c1aca30 100644
--- a/src/ActionHandlers.js
+++ b/src/ActionHandlers.js
@@ -18,8 +18,13 @@ var PUSH_NOTE_WS = "pushNoteWS";
 var PUSH_ATTACHMENT = "pushAttachment";
 var PUSH_ATTACHMENT_WS = "pushAttachmentWS";
 var CHILD_NAVIGATE = "childNavigate";
+var ASSET_NAVIGATE = "assetNavigate";
 var SAVE_CREDS = "saveCreds";
 var SAVE_ATTACHMENTS = "saveAttachments";
+var DISPLAY_WORKFLOW = "displayWF";
+var EXECUTE_WF = "executeWF";
+var ATTACH_DOCUMENT = "attachDocument";
+var SEARCH_DOCUMENTS = "searchDocuments";
 
 /**
  * Collection of functions to handle user interactions with the add-on. 
@@ -109,6 +114,15 @@ var ActionHandlers = {
     return buildChildrenCard(children, action, param.parameters);
   },
 
+  assetNavigate: function(param) {
+    var parentId = param.parameters.parentId;
+    var children = nuxeoClientWrapper().children(parentId);
+    if (_.isEmpty(children)) {
+      return showSimpleCard("Nothing here!", "There is no other folders here.");
+    }
+    return buildPickUpCard(children, param.parameters);
+  },
+
   /**
    * Handle the push of attachment(s) to Nuxeo from a Gmail email.
    */
@@ -167,7 +181,8 @@ var ActionHandlers = {
     return showResultDoc(
       "Success!",
       "You have successfully created the document",
-      document.contextParameters.documentURL
+      document.contextParameters.documentURL,
+      document.uid
     );
   },
 
@@ -179,7 +194,8 @@ var ActionHandlers = {
     return showResultDoc(
       "Success!",
       "You have successfully created the document",
-      document.contextParameters.documentURL
+      document.contextParameters.documentURL,
+      document.uid
     );
   },
 
@@ -191,7 +207,8 @@ var ActionHandlers = {
     return showResultDoc(
       "Success!",
       "You have successfully created the document",
-      document.contextParameters.documentURL
+      document.contextParameters.documentURL,
+      document.uid
     );
   },
 
@@ -203,8 +220,45 @@ var ActionHandlers = {
     return showResultDoc(
       "Success!",
       "You have successfully created the document",
-      document.contextParameters.documentURL
+      document.contextParameters.documentURL,
+      document.uid
     );
+  },
+
+  /**
+   * Display workflow card.
+   */
+  displayWF: function(e) {
+    return displayWFCard(e.parameters.docId);
+  },
+
+  /**
+   * Execute a workflow for a given user on content
+   */
+  executeWF: function(e) {
+    // TODO
+  },
+
+  attachDocument: function(e) {
+    var url = e.parameters.url;
+    var title = e.parameters.title;
+    var linkToAdd = '<img style="width: 20px" src="' + NUXEO_ICON + '"/><a href="' + url + '">"  ' + title + '"</a>';
+    return (build = CardService.newUpdateDraftActionResponseBuilder()
+      .setUpdateDraftBodyAction(
+        CardService.newUpdateDraftBodyAction()
+          .addUpdateContent(linkToAdd, CardService.ContentType.IMMUTABLE_HTML)
+          .setUpdateType(CardService.UpdateDraftBodyType.IN_PLACE_INSERT)
+      )
+      .build());
+  },
+
+  searchDocuments: function(e) {
+    var fulltext = e.formInput.suggestion;
+    var assets = nuxeoClientWrapper().assets(fulltext);
+    if (_.isEmpty(assets)) {
+      return showSimpleCardForPickup("Nothing here!", "There is no documents.");
+    }
+    return buildPickUpCard(assets, {});
   }
 };
 
diff --git a/src/Main.js b/src/Main.js
index b83ef97..86a0380 100644
--- a/src/Main.js
+++ b/src/Main.js
@@ -21,6 +21,19 @@ function getContextualAddOn(event) {
   return dispatchActionInternal_(event, addOnErrorHandler);
 }
 
+/**
+ * Entry point for selecting documents to insert into gmail message.
+ */
+
+function attachDocToComposeUI(e) {
+  // List assets
+  var assets = nuxeoClientWrapper().assets("");
+  if (_.isEmpty(assets)) {
+    return [showSimpleCardForPickup("Nothing here!", "There is no documents.")];
+  }
+  return [buildPickUpCard(assets, {})];
+}
+
 /**
  * Returning the card of disconnect info.
  */
diff --git a/src/NuxeoClientWrapper.js b/src/NuxeoClientWrapper.js
index 100f7cc..3b013dc 100644
--- a/src/NuxeoClientWrapper.js
+++ b/src/NuxeoClientWrapper.js
@@ -8,6 +8,7 @@
  */
 
 var MAIN_PP = "tree_children";
+var SUGGESTION_PP = "default_document_suggestion";
 
 /**
  * Exception to raise when authorization is required.
@@ -81,7 +82,8 @@ var NuxeoClientPrototype = {
       throw new AuthorizationRequiredException();
     }
     var headers = {
-      Authorization: Utilities.formatString("Bearer %s", this.oauthService.getAccessToken())
+      Authorization: Utilities.formatString("Bearer %s", this.oauthService.getAccessToken()),
+      "enrichers.document": "documentURL"
     };
     var url = this.apiEndpoint + "/search/pp/" + MAIN_PP + "/execute?queryParams=" + id;
     var response = UrlFetchApp.fetch(url, {
@@ -97,6 +99,28 @@ var NuxeoClientPrototype = {
     return parsedResponse.entries;
   },
 
+  assets: function(fulltext) {
+    if (!this.oauthService.hasAccess()) {
+      throw new AuthorizationRequiredException();
+    }
+    var headers = {
+      Authorization: Utilities.formatString("Bearer %s", this.oauthService.getAccessToken()),
+      "enrichers.document": "documentURL"
+    };
+    var url = this.apiEndpoint + "/search/pp/" + SUGGESTION_PP + "/execute?queryParams=" + fulltext;
+    var response = UrlFetchApp.fetch(url, {
+      method: "get",
+      headers: headers,
+      muteHttpExceptions: true
+    });
+    var raw = response.getContentText();
+    var parsedResponse = JSON.parse(raw);
+    if (parsedResponse.status && parsedResponse.status === 500) {
+      throw new Error(parsedResponse.message);
+    }
+    return parsedResponse.entries;
+  },
+
   /**
    * Push a note as a file into the current user workspace.
    * @param {Object} params 
diff --git a/src/Views.js b/src/Views.js
index feb90af..c791b1b 100644
--- a/src/Views.js
+++ b/src/Views.js
@@ -244,10 +244,23 @@ function showSimpleCard(title, message) {
     .build();
 }
 
+/**
+ * show simple card for pickup.
+ */
+function showSimpleCardForPickup(title, message) {
+  var card = CardService.newCardBuilder();
+  var header = CardService.newCardHeader().setTitle(title);
+  var section = CardService.newCardSection().addWidget(CardService.newTextParagraph().setText(message));
+  return card
+    .setHeader(header)
+    .addSection(section)
+    .build();
+}
+
 /**
  * show doc creation result.
  */
-function showResultDoc(title, message, link) {
+function showResultDoc(title, message, link, docId) {
   var card = CardService.newCardBuilder();
   var header = CardService.newCardHeader().setTitle(title);
   var section = CardService.newCardSection()
@@ -257,11 +270,22 @@ function showResultDoc(title, message, link) {
         .setText("Access to the document")
         .setOpenLink(createExternalLink(link))
     );
-  var build = card
+  var params = {
+    docId: docId
+  };
+  var sectionTask = CardService.newCardSection();
+  sectionTask.addWidget(
+    CardService.newKeyValue()
+      .setIcon(CardService.Icon.INVITE)
+      .setMultiline(true)
+      .setContent("Execute a workflow on this content")
+      .setOnClickAction(createAction_(DISPLAY_WORKFLOW, params))
+  );
+  return card
     .setHeader(header)
     .addSection(section)
+    .addSection(sectionTask)
     .build();
-  return build;
 }
 
 /**
@@ -319,6 +343,61 @@ function buildChildrenCard(children, action, params) {
     .build();
 }
 
+/**
+ * Create the children docs tree card for pickup.
+ */
+function buildPickUpCard(children, params) {
+  var card = CardService.newCardBuilder();
+  var sectionLogo = CardService.newCardSection().addWidget(
+    CardService.newKeyValue()
+      .setIconUrl(NUXEO_ICON)
+      .setMultiline(true)
+      .setContent("<b>Please choose the document to attach:</b>")
+  );
+  var inputSection = CardService.newCardSection()
+    .addWidget(
+      CardService.newTextInput()
+        .setFieldName("suggestion")
+        .setTitle("Search for...")
+    )
+    .addWidget(
+      CardService.newButtonSet().addButton(
+        CardService.newTextButton()
+          .setText("Search")
+          .setOnClickAction(createAction_(SEARCH_DOCUMENTS))
+      )
+    );
+  var sectionChildren = [];
+  for (var i = 0; i < children.length; i++) {
+    var sectionChild = CardService.newCardSection();
+    params = _.extend({}, params);
+    params.parentId = children[i].uid;
+    params.title = children[i].title;
+    params.url = children[i].contextParameters.documentURL;
+    sectionChild
+      .addWidget(
+        CardService.newKeyValue()
+          .setIcon(CardService.Icon.MEMBERSHIP)
+          .setMultiline(true)
+          .setContent(children[i].title)
+          .setOnClickAction(createAction_(ASSET_NAVIGATE, params))
+      )
+      .addWidget(
+        CardService.newButtonSet().addButton(
+          CardService.newTextButton()
+            .setText('<font color="#334CFF">' + SPACES + "> Attach</font>")
+            .setOnClickAction(createAction_(ATTACH_DOCUMENT, params))
+        )
+      );
+    sectionChildren.push(sectionChild);
+  }
+  var card = card.addSection(sectionLogo).addSection(inputSection);
+  for (var i = 0; i < sectionChildren.length; i++) {
+    card.addSection(sectionChildren[i]);
+  }
+  return card.build();
+}
+
 /**
  * Display attachments to select.
  */
@@ -363,3 +442,22 @@ function buildAttachCard(attachments) {
     .setNavigation(CardService.newNavigation().pushCard(build))
     .build();
 }
+
+function displayWFCard(docId) {
+  var card = CardService.newCardBuilder();
+  var sectionLogo = CardService.newCardSection().addWidget(
+    CardService.newKeyValue()
+      .setIconUrl(NUXEO_ICON)
+      .setMultiline(true)
+      .setContent("<b>Workflow</b>")
+  );
+  var sectionAction = CardService.newCardSection();
+  sectionAction.addWidget(
+    CardService.newButtonSet().addButton(
+      CardService.newTextButton()
+        .setText('<font color="#334CFF">Execute</font>')
+        .setOnClickAction(createAction_(EXECUTE_WF))
+    )
+  );
+  var card = card.addSection(sectionLogo);
+}