I tried to use a cond. branch to check if a certain group of switches are on but got an error. I used $game_switches[10...14].id = true. but got an error msg. any ideas?

Rather than checking if all are true, you can check in any is false.
Like this: not $game_switches[10..14].include?(false)

This will check in any switch between 10..14 is false and return false if this is the case.

Thanks Kread but i founD a fix for this. G.F.T.H.

Out of curiosity, what kind of fix ?

someone posted a solution for me HERE