Resize window pair

[Thesola10]

The ability, through a keybind or modifier, to resize two adjacent windows by a shared edge in such a way that both windows occupy the same width, like in a traditional tiling window manager.

Discussed in #1118

^{Originally posted by IceAsteroid December 11, 2025}
I cannot figure out a natural way to resize both the two windows horizontally that both of them should fit in the screen, but exceed it.

It drives me crazy when I open a browser window and an editor window that I must see both of them in the screen entirely without one of them exceeding the screen.

How to do this in paperwm?

I know I can resize a window with Super+r, but this cannot resize both windows.

[maxigit]

I need something similar too, and the I was thinking of being able to select some windwos using Super+T and have the selected window moved next to each other (if needed) and resized to fit the screen in equal proportion. Just an idea.

[rubaboo]

Following.