There was the old Skulltag expansion pack that had a script that noted down your cross hair and HUD settings, turned off all the visual clutter, took a screenshot, then restored the settings for you, all in one button press.

It broke in later versions of Zandronum because they didn't want mod authors to hardcode HUD setting changes that would then fuck up people's configs for other mods/unmodded servers, which also broke the script function because restoring the data that your own script noted down was counted as an insecure source.

It's possible, just probably buried under technical bullshit and or documentation.