If you add text within a text box or autoshape, you can change the text offset from the left side of the text box. Indenting is also used to create multilevel lists.
put the cursor within a paragraph or a line of a list,
open the settings panel by
tapping the
icon at the top toolbar, or
tapping the Edit option in the pop-up menu,
switch to the Text tab and swipe up to see all the settings,
use the respective icons: Decrease Indent
and Increase Indent,