Hello there, I moderate the game Sonic Robo Blast 2 (http://www.speedrun.com/srb2) and I made a sub game for it as it was a modification. You could access this by clicking "ROM Hacks/Modifications" next to the game but this seems to have been removed, the game extension also has no way to change it from a "ROM Hack" to a "modification" as all the options are greyed out.

I hope you got all that, thank you for your help.

Odd, you are a super mod so you should be able to. Maybe they have it set so that only Full Mod+ can change game type. It might be intentional or an oversight.

The options affecting organization of the game from a site level are restricted to full mod and above access right now. This is primarily so people don't arbitrarily mark or unmark things to misrepresent the game in the search mechanisms. All previous rom hacks and mods were converted to rom hacks for now. We'll have to review these to decide what should in fact be mods. (We also need to define ROM Hack vs mod, but it should be clear enough for most games.)

As far as the Rom Hacks/Mods link, it is gone for now since a lot of the code around it was restructured. We might be able to make a replacement that shows all games with the given game as the parent game.

I switched the given case to a "mod"

Thank you for getting back to me, as you say it is obvious which will be which but I can see why the option is currently hidden. It was more on my mind as the mobile phone browsing finds that sub section easier than manually selecting but that's a tidbit. Thank you for the help and hope the rest of the move goes smoothly.