Timelion deprecation doc

docs/user/visualize.asciidoc

@@ -132,8 +132,11 @@ include::{kib-repo-dir}/visualize/lens.asciidoc[]
 include::{kib-repo-dir}/visualize/most-frequent.asciidoc[]
 
 include::{kib-repo-dir}/visualize/tsvb.asciidoc[]
+
 include::{kib-repo-dir}/visualize/timelion.asciidoc[]
 
+include::{kib-repo-dir}/visualize/timelion-deprecation.asciidoc[]
+
 include::{kib-repo-dir}/visualize/tilemap.asciidoc[]
 
 include::{kib-repo-dir}/visualize/for-dashboard.asciidoc[]

docs/visualize/timelion-deprecation.asciidoc

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+[[timelion-deprecation]]
+== Timelion App Deprecation
+
+*With 8.0*, Timelion app is going to be deprecated so there are some actions you should take to copy your existing Timelion worksheets to a dashboard.
+This guide is designed to help you through this process. 
+
+One important note here is that it is going to affect *only the Timelion application*. 
+
+[role="screenshot"]
+image::images/timelion-app.png[]
+{nbsp}
+
+If you use Timelion only as visualization feel free to skip this guide. 
+
+[float]
+[[timelion-app-to-vis]]
+=== Create Timelion visualizations from a Timelion sheet
+
+To migrate your Timelion's charts to Timelion visualizations, you should copy the expression of each graph and create a new Timelion Visualization.
+
+* Select the chart you want to copy and copy its expression.
+
+[role="screenshot"]
+image::images/timelion-copy-expression.png[]
+{nbsp}
+
+* Navigate to Visualize to create new visualization and click on Timelion.
+
+[role="screenshot"]
+image::images/timelion-create-new-vis.png[]
+{nbsp}
+
+* Paste the copied expression to *Timelion Expression* field and click the Update button.
+
+[role="screenshot"]
+image::images/timelion-vis-paste-expression.png[]
+{nbsp}
+
+* Save the new Timelion Visualization and repeat for all your charts on each sheet.
+
+[float]
+[[timelion-sheet-to-dashboard]]
+=== Create a new dashboard with Timelion visualizations
+
+Timelion sheets may be deprecated but they can easily be replaced by a dashboard. The process is the same as adding a new visualization to a dashboard.
+
+* Navigate to Dashboard and click to create a new dashboard.
+
+* Click to Add an existing visualization to the dashboard.
+
+[role="screenshot"]
+image::images/timelion-add-to-dashboard.png[]
+{nbsp}
+
+* Add your Timelion visualizations and save your dashboard.
+
+[role="screenshot"]
+image::images/timelion-dashboard.png[]
+{nbsp}