Oh what the heck, ConVars return '#empty' now when no value is present, seems to be a recent update. I'll get it sorted out on my end.

Ok maybe what i am getting here is an error then. I got thag far, typed on ccvccm_open in console, however when it opens it shows nothing. No tabs, no insane stats, anything. Just allows me to make new tabs and new stuff.

Type 'ccvccm_open' in the console, then go to Insane Stats > Server > Coin Drops - Shops

So, how do I use this to change the shop items on insane stats? I'm more than a little lost

Yep. Unlike the spawnmenu, CCVCCM will still show up outside of Sandbox, so you don't need to have the spawnmenu open to see the graphical ConVar controls.

does it potentially works in any gamemode?

so useful