Bug 506307

Given i have 2 tiles configured, i would like to be able to drag a window across both to make it snap to the sum of them. This is a feature which exists in PowerToys FancyZones, from which i know how useful it can be.

Desired Behavior:
1. Have a tiling layout with 2 tiles
2. Grab a window while holding Shift (default tiling modifier)
3. Drag it to one of the tiles
4. Start holding another modifier
5. Drag it to a adjacent tile, selecting it as well
6. Let go of everything
7. The window snaps to occupy the sum of both tiles

Since it seems that unlike FancyZones, windows are far more locked to their tile, it might be necessary to implement this by ad-hoc creating a new tile below the existing ones which spans both of them. If thats necessary a open question is how this can be cleaned up again afterwards.


SOFTWARE/OS VERSIONS
Linux: EndeavourOS on Kernel 6.15.3-arch1-1 (64-bit)
KDE Plasma Version: 6.4.1
KDE Frameworks Version: 6.15.0
Qt Version: 6.9.1

ADDITIONAL INFORMATION
FancyZones docs for their version of this feature: https://learn.microsoft.com/en-us/windows/powertoys/fancyzones#snapping-to-multiple-zones-with-the-mouse-and-keyboard