Yatse accepting other commands not listed

Does Yatse accept other commands like Pagedown, Pageup ? i don’t see it listed in the options within Yatse?

I know there is a JSON or Node.js command for Kodi for these actions

Thank you. When i looked at that documentation, i could not reconcile what it says vs what i see

Yatse i select the remote button upper right and select the +
The only options i have are import from file and add from HTTP Commands.

I don’t have :
JSON COmmand

see attached screenshot

Because your Kodi is offline