Multiple instances of custom paramenter keep glyphs

is there anything wrong with having seperate parameters for say distinct clusters of glyphs i intend to keep?

seems to be not accepting the 2nd instance of the parameter

usecase is forexample a dedicated parameter for a specific script.
rather than having one for all

It will look only until it finds the first Keep Glyphs parameter.

apparently.

what reason is there tho to not allow multiple

You could have two or three different ones and just drag them in the right order before export.