Jose wrote:
I'm a Captain in all the planes but move to the right seat often. When
I'm in the right seat what can I log?


IMHO, If you are the Pilot In Command, you log PIC time, no matter what
(physical) seat you sit in.

Where you sit is not important. However, the rules don't say "LOG PIC
TIME WHEN YOU ARE PIC." In order to do that there are additional
qualifications. The most commonly used one is that the regulations
(lets say Part 135) require more than one pilot.

My strict reading of 61.51(e) says that if you are not the "sole
manipulator", then even if you =are= the PIC, then so long as anybody
else is handling the controls, you can't log PIC time,Y

You better read 61.51 again. There are three more clauses than the
one you're reading.