Module Extensions Question

Is there a way to make two extensions added to a module load the same piece into a game piece palette?

I want the extensions to be playable with the main module with only one or the other extension loaded. The main module would not use this piece, but both extensions would need this piece. When I add the piece to both extensions, then it shows up twice in the game piece palette.

I have try it.
No, if you want use the pieces in booth extensions they must be in the main module.