Unfortunately, this feature isn’t available for Google Docs on Android. If you want to insert a table of contents in your document, you’ll need to use the desktop or iOS versions.

When doing research, having multiple tabs open at once can be confusing. Google Docs' Explore feature compiles your resources into one place. It finds relevant information online or in your Google ...

It might not make a lot of sense if you’re using Docs for document editing. but if you use it for any kind of tabular or project management work, drop-downs can be a great way to update a table.