Altering hotkeys from the command line

[Lyle18]

Here is what my command line looks like;
vlc --f --no-osd --loop video1 :input-repeat=-1 video2 (here's where I need help)

I'm working on a kiosk application and as part of it I need to be able to turn off and on, either all hotkey/keyboard events, or change a single hotkey during execution of my playlist.
Basically the only interaction the user will have with the kiosk is the "next" key and I want to be able to stop them from using even that during part of the playlist.
I've tried using :no-keyboard-events and I've tried :key-next="0" but they don't seem to be recognized. They don't cause errors but they don't work either.
Is there a different syntax I ought to be using?

I had a similar problem with :repeat which doesn't work but I found a post from someone who had the same problem and found that using :input-repeat=-1 did the job.
I've tried variations on that with :key-next but with no luck.


Thanks in advance!