Patch Selector

I read somewhere that there is a lot of key-commands available in Cubase 4.
I am looking for a way to change the patch by using key-commands,
preferably like using the + and - keys to step one patch up or down respectively.
It’s a functionality I use a lot, but I cannot seem to find it.

Only way with a KC is if the browser’s open and the presets are VST3 or have been converted to VST3, then the up and down nav buttons will scroll through them.

I have a Generic Remote preset that allows me to do this from my controller, also.