In the Renumber dialog, you can renumber balloons or bend identifiers on a sheet in the Drawing workspace in Fusion.
On the toolbar, select Tables > Renumber
Select the type of the identifier to renumber.
Select the level to renumber, when the Structure of a parts list is set to All Levels.
Select balloons or bend identifiers to renumber, in the new order in which they should appear.
Enter the number to start with as you renumber balloons or bend identifiers.
The number will automatically increment as you select balloons or bend identifiers