Two very simple questions:

Can one or more dice be rerolled more than once? For example Darth Vader + Leading Shots.

Can one or more dice be changed by different effects multiple times? For example H9 (from hit to accuracy) + Warlord (from accuracy to hit) (okay useless, but still, legal?).

Thank you

1. Yes (it's a good example).

2. Yes (but why not use Warlord to change to double hit? more useful then?)