Hi Pilou,

> A shortcut is possible to call/uncall the "Object frame selection"?

Yes, it is possible to create a shortcut to toggle the object frame on or off, by using the following for the command part of the shortcut:
script:moi.view.showEditFrame = !moi.view.showEditFrame;

There is also a checkbox available for it under Options / View / Show edit frame.

But it is a pretty big goal to make the object frame very unobtrusive so that it is not necessary to do that.

- Michael