Once I start using BIG box I can't do this with just my controller. The problem I have is it requires clicking on the PS4 or PS5 icon in the box and pressing F11 to go to full screen. I added 2 new sections, Sony Playstation 4 and Sony Playstation 5 and assigned chiaki.exe as rom with no emulator. I almost set up everything I needed, but came into an issue with CHIAKI.
I've been mainly using Hyperspin for my arcade setup, but found Launchbox and it works amazingly to set up quick collections on my laptop.
