Hi Folks!
Apologies if this has been done to death before . . . here I go . .. 
I've got a clip rolling on Track1 - I've got a clip on Track2. I go into Track2 P/C and reduce its size. Now showing Track1. What I want to do is move Track2 around the Preview Screen while Track1 is rolling in Preview and have the P/C positions be picked up AND recorded as I move Track2 all over Track1. Yes, I can stop the motion and stick in a K/Fs - but I want to make this process more fluid, more elegant, more organic and not have to need to "break" the flow of my movements by requiring to place K/Fs, in different places - yes? 
Am I asking too much? - Probably - but if I don't ask . . . 
TIA - Grazie