MS Keyboard Layout Creator can not assign those keys, but only characters and dead keys. AFAIK kbdedit.com will allow you to create such a custom Windows keyboard layout _with_ arrow keys. I currently use Autohotkey for that. You can have a look at my script and see how I assign the CapsLock key as a modifier key and in my case (Vim-like) hjkl-keys as arrow keys. The source is here:... Source: over 1 year ago

Then, I can only suggest http://hammerspoon.org/ and then you can start implementing window movement using it https://www.hammerspoon.org/go/#winmoveintro. Source: about 1 year ago

MacOS doesn't do this natively, but you have options: - If you just want to move windows around with some degree of keyboard customization, go for Rectangle. - If you want more control, such as sizing a bunch of windows at the same time, use Slate. - If you can code and want really high degrees of customization, you won't go wrong with Hammerspoon. Source: almost 2 years ago

Both of those can be replaced by the open-source Hammerspoon (actually a significant number of the things in this thread can, including BTT). Source: about 2 years ago

Depending on what you want from KM, Hammerspoon may be a good alternative. You can also look up on AlternativeTo for other options. Source: over 2 years ago