Oh ! thank's Cherico that's exactly what i was looking for, and btw, her's what i wanted to do : bladesquad.com/sleepwalker1
and thank's again i'll try with this version. :)
ps: you have to select "climb" and then, select one of the characters, he will move allover the walls to activate the door :)
just got another issue is that sometimes it select two chars instead of one. im actually trying to fix it, in case u have an idea.