Key repeat for custom shortcuts

Hello folks, new KDE user here. I’ve been trying to remap the arrow keys to combinations like alt+j, alt+k on KDE to because I’m a huge fan of VIM’s way of navigating. I’m much more productive without moving my hands over to arrow keys constantly.

KDE’s custom shortcuts allow me to do this but there’s no key repeat on those custom shortcuts. I have to hit the keys multiple times if I want to move the cursor 10 characters left. Any ideas how to enable the key repeat for those shortcuts? Any help would be appreciated.