Thanks a lot Alex, damn parenthesis, it’s like looking for Waldo sometimes!!
so i tried your expression, (and i corrected my last parenthesis :p) and its telling me that targetpath.pointOfPath is not a function, so i took my old expression, back and change my createPath like yours so createPath(plist,[],[],true) and it gave me the same error path.pointOnPath is not a function.
i think i got lost.
for info i’m on after effect CC 2017, i’m not it changes a lot, but i forgot to tell you.
Thanks again for your answer