We have fields under the model properties for overall sequence number and total sheets in a sheet index folder, but not the ability to use the sequence number within the same sheet index folder, even though the sheet index knows this information as shown in the brackets.

For example, you have a project that has 100 sheets:

You may want your title block to include information in the Geometric Data or Typical sections that says "SHEET X OF Y" that is specific to that group of sheets. Right now you can't do that because the sequence number for sheet 1 of the geometric data is 7, however, you can show the total number of sheets in the sheet index folder. So using those fields it would show "SHEET 7 OF 10" for the first sheet in that folder, and by sheet 5 of the geo data it would show "SHEET 11 OF 10". However, as I said, the sheet index knows that sheet 5 of geometric data is actually 5 because it would show something like this: "R005 [5,11]" for the fifth sheet in the geometric data folder. We should be able to use that first number in the bracket as a field for these types of situations.