About the frame 3 thing:
Go to the hair object > under 'dynamics' there's an option 'animation'. Set the frames to '3' (in your case) and click on 'relax'. This will play the animation for 3 frames.
After that, go to Hair > Hair edit > set initial state. This will freeze the current state of the hairs. You can then go back to the Hair object and disable the 'dynamics', to make sure the hair stays the same.