We already got the ability to move windows between Custom Tiling zones via keyboard: https://bugs.kde.org/show_bug.cgi?id=466687 This is very useful already. Still, it would be amazing if we could invoke the 'Split left/right', 'Split up/down', 'Add floating tile', and 'Delete' actions via keyboard as well. Especially splitting and deleting zones would be amazingly useful, given that these actions have an immediately visible effect outside the tiling layout editor. (Floating tiles are a little buggy for me so I haven't used them extensively.)