[Feature request] edit layouts on secondary monitors/displays

**Describe the feature you'd like**
be able to edit layouts on secondary monitors/displays.

**Additional context**
the current layout editor only appears on the primary display. Not all displays are the same resolution.
my primary display is a laptop screen at 1080p and my secondary is an ultra wide at 5120x1440.
editing the layout on the primary, when i actually want to use the layout on the secondary, is trial and error.
if the layout editor overlay appeared on both monitors at the same time (and was interactive) then this would be much easier.