Use both BG1 and BG2 NPC sound sets in EET?

Hi all, I know that in EET your party NPCs will use their BG1 sound sets in the BG1 portion of the game, and then use their BG2 sound sets in the BG2 portion of the game. My question is, is it possible to have both sound sets during all portions of the game to add to the variety of what the NPCs say? I know this is possible at least since the Jaheira Recast mod allows for an option to do this for Jaheira at the very least. Thanks so much!

- John