isolate til3r effects per display

[jayarmstrong]

I'm trying to split windows into thirds on my external 4k monitor and don't need til3r on my smaller laptop display. Currently, til3r is counting my laptop display as column 1/3, and my external monitor as columns 2/3 and 3/3. Effectively, this provides no more utility than KWin's default 50/50 window snapping.

Til3r would be perfect for my needs if I only had one display.