How do I insert a tab character in a Google Docs document on iOS? I'm trying to insert a tab character in a Google "doc", from Google Drive on my iPhone. 

I have a list


Item
Thing


and I need to insert an a. between 1 and 2 - usually accomplished by pressing the Tab, which is not present on the onscreen keyboard. 

How do I accomplish this task (on iOS)?
In the Google Drive app, within a Google document, there are two indentation keys in the top status bar. You'll need to scroll right to get to them. The right one works just like Tab, and the other is for Shift+Tab.