I didn't know dlgchoose, i will surely use it for other things.. so thank you very much for the idea
But i wanted to offer the user the possibility to simply chose the destination without modifying the code.
And the post Global variables to store dynamic folder bookmarks? gave me the solution !
I used aliases :
I made a 3 buttons, on the middle mouse button, i make an alias with the path of the choosen file (or folder) :
Favorites ADD=alias PATH {filepath} NAME=DestPath1
On the left mouse button, i copy my files, to the alias :
copy TO /DestPath1
And on the right mouse button, i move my files, to the alias :
copy MOVE TO /DestPath1
Et voila
DOpus is magic...
Let me know if it will be usefull for you