Note that the list name remains the same for all of these tags. Table titles have a level 4 designation, and Figure titles have a level 5. The numbering style calls out the level 4 numbers (^4) on the Table titles, and the level 5 numbers (^5) for the Figure titles. It’s important to note that for this style, both of these restart after the level 3s (Subhead 2s).
Place the insertion point in the paragraph and choose Restart Numbering from the context menu or choose Type > Bulleted And Numbered Lists > Restart Numbering. In normal lists, this command assigns the number 1 (or letter A) to a paragraph and makes it the first paragraph in a list. In multi-level lists, this command assigns the first lower-level number to a nested paragraph.
I tried very hard to understand your request, but I still don't get it. When exactly do you want that your paragraph restarts at "A"? After a certain paragraph style (title, list or whatever)? In that case, you just need to create a multilevel list. Please be more specific, using screenshot of what you want to achieve at the very end. – Vinny May 18 '17 at 8:17 indesign-numbering