If I understand correctly: you have several, similar panel items, with different A-B sizes, and you want to create a list, where all panels with the same A-B size are listed under the same category.
If yes, currently your best bet is to add a string type parameter to all such objects, and create a string value in paramscript using parameter values “A”, “B” and STR string formatting functions to convert strings from length types. Store the concatenated string value in the new parameter, lock it to avoid accidental changes, and then list this new parameter in the schedule.
Let us know if the case is different.
Library Developer, Library Team