Can trust your feelings be used to strike twice (like double strike) ?...I would say yes because if I move the focus token after my character strikes (in the following action window) then he's ready and should strike again, right ?...

perfectly viable. there are player action windows between each strike in an engagement, so you can strike, trust your feelings, strike.

Not only could you strike again in that scenario, but you would have to. This is significant if you're worried about Force Lightning in your opponent's hand. Assuming that you're attacking, you could use Trust Your Feelings immediately after striking to remove the focus token before your opponent could use Force Lightning, but then you'd have to strike again that engagment, allowing them to Force Lightning after the 2nd strike.

Thanks !

So to avoid force lightning, could you have your character strike last, immediately end the engagement, and use trust your feelings? Or is there a guaranteed action window after the last character strikes before the engagement ends?

So to avoid force lightning, could you have your character strike last, immediately end the engagement, and use trust your feelings? Or is there a guaranteed action window after the last character strikes before the engagement ends?

No it is not avoidable. Assuming you attacked, you strike and (since you are the active player) have the first option to play an action in the subsequent action window. If you pass, your opponent then gets an action in the same window (since there hasnt been consecutive passes) and may play force lightning. If you use Trust instead of passing, your opponent can't play Force Lightning there because of the exhausted requirement, but you will be forced to strike again, and then the process will start over, allowing him to play it then.

If you are in an engagement, it is impossible to avoid force lightning (provided your opponent has the resources etc) before the end of the engagement.

You cannot "End the engagement". Players do not choose this, it is enforced by the rules, and subsequent (even if implied) passing from both players.

Not that it really matters, since there is a window in between announcing the next attack, where lightning could also be played if you could no longer remove the token.