Is it hard to modify the campaign?

Sorry, I posted this initially in the wrong forum I believe.

Are we able to load up the campaign within the toolsets and make any changes or additions to existing maps, quests, items, bosses, music, etc? Kind of like the Torchlight 2 Syngeries mod?

Or do we pretty much have to start from scratch with new everything?

You can edit whatever you want regarding “maps, quests, items, bosses, music, etc.”

Ok thanks, so just load up the toolset and play around with the various aspects then? I’ve not used the toolset yet though I wasn’t a big fan of Torchlight 2 GUTS… seemed more complicated then need be.