Does his ability allow him all the focus tokens spent? If I run him in a 7 tie swarm that all focused he could end up with 7 focus token correct?

Correct, as long as you can keep all 7 at range 1 of Chaser that is

[edit - Didn't realise this was a double post and the answer was allready in the other thread]

Ability's from pilots can be use multiple times per round.

Ability's from pilots can be use multiple times per round.

Yes, some can, but all of them are governed by the once per opportunity rule.