I've duplicated a group of graphic objects, and need to make the same change to all variables in the duplicated objects -
i.e., change Array[1] to Array[2]
Then duplicate again, and search/replace Array[1] to Array[3], and so on.

When I select 'Selection Only' and click 'Replace All' it tells me, 'Search scope 'selection only' is not supported for this editor'.

So I then select 'Active Editor' and 'Find Next' then 'Replace', I get the error msg: 'Value cannot be Null. Parameter name: stBlock'

So what is the proper way to do this? Am I missing something?

you need to expand group and select all elements you need to replace

Thanks for your reply. Can you elaborate on 'you need to expand group'? What does that mean?

Just select all object you need