Well, I found that we can add functionalities like we create content component to the page and add it to the tabs node of the editor.html page.

I wanted to make changes to the sidekick. Customization of it. @smacdonald2008

Yes, I have tried to add a js file to the existing clientlibs, with a line of 'window.alert', but it loads when I goto Classic UI->Websites (http://localhost:/siteadmin), it doesnt work when I edit a page in touch ui. The path I tried is : path: /libs/cq/ui/widgets/source/widgets/wcm/Sidekick.js and...

In this path:/libs/wcm/core/content/editor/jcr:content/sidepanels/edit/items/tabs/items, editor is of type 'cq:page'. If we check below they have added tabs and each tab has its functionalities, I have added my tab there but I am unable to add my functionality to it. How did they add those functiona...

There are a few clientlibs, but all of it are for ClassiC UI, and I am working in AEM 6.4 Touch UI. Other than clientlib how else can I add functionality to the new tab, like TextField, Button, etc. @Prince Shivhare

I have added a new tab and functionality in the sidekick, so I have overlayed /libs/wcm/core/content/editor/jcr:content/sidepanels/edit/items/tabs/items, and added a new tab into it. but I am unable to add clientlibs to it to add my functionality.