Is there a way to force the standalone viewer into fullscreen (or out of it)?
Show VIEWERCMD=fullscreen will only toggle the state.
The state can be checked with
@if:Show VIEWERCMD=fullscreen @confirm:yes @if:else @confirm:no
... but this button still toggles the state:
@if:Show VIEWERCMD=fullscreen Show VIEWERCMD=fullscreen
Interestingly, as a user command it will turn fullscreen mode off. With a script I couldn't reliably set the state, either.
IMHO the ideal solution would be an additional on/off option for the command similar to
Show VIEWERCMD=meta, like
These commands could receive the same treatment:
Show VIEWERCMD=shortcutbar Show VIEWERCMD=slideshow Show VIEWERCMD=statusbar Show VIEWERCMD=toolbar