The feature should address a problem in creating or editing the mod. Maybe a feature for automated scripting? Like a visual scripting system where modders can drag and drop events and actions. That would lower the barrier to entry for people who don't know how to code.
Maybe a feature related to asset conversion. If the tool allows converting assets from one game to another (like from Half-Life to S.T.A.L.K.E.R.), that could be useful. But the user mentioned "Portal," so maybe integrating a physics-based puzzle system, similar to the game Portal? Wait, but S.T.A.L.K.E.R. is a survival horror game, so adding a portal mechanic might be a stretch. Perhaps the user is referring to a different sort of portal system, like teleportation or quick travel? stalker portal player for pc v71 by sahbaz work
Or maybe a feature for collaborative mod development, allowing multiple users to work on the same mod project and merge their changes like a version control system. The feature should address a problem in creating