YES...I now have both Merlin and Daimler working in game at the same time using different PRS .
Its simple.... if you have dumped the sfs files already......
1-Go to $bob folder an move it to your mods folder ( I put mine inside the CMSound folder ) and then open up the flight models folder inside.
2-Go to Daimler-Benz Emd and change motor . merlin to motor . Daimler on both entries in there
3-Now create a new motor.daimler prs and place it in your sounds folder along side the motor.merlin prs you already have and your away
IF you know how to manipulate prs already you need no further info from me , if you are relatively new to this then I would suggest copying the merlin prs and renaming it daimler and then taking it from there.
Cheers
Jafa.