I've just discover the great showontab argument.
But it seems to consider that "parent" patcher can only be the main patcher.
I've got a patcher called "son" in my main patch and I try to set "show on parent patcher tab" on the subpatch "grandson" witch is inside the patcher "son" so that is appears in tab when I open "son".
But when I load the main patcher, I've got tabs ("main patch" and "son") on the main patcher screen.
Is there a way to get arround that ?
thank's for help !