ok, for now here are my ideas.. but I don't know which one is the best :
1 - create one main assy that contains all the sub-assys, I would have to Update only ONE assy before opening my drawings.
2 - I tried the "Task scheduler" , no succes, the sequential tasks were not working. (Update Assy, then Update Drawing), when I opened the drawing I still had a message it was not Updated.
3 - Maybe something is possible with Vault ?
4 - A Macro or VB, routine, something like ( Open assy, Update assy, Open drawing), for each sub-assy. But I don't know how to use Macros yet.
Well, your suggestions?
Thx again