Let me ask a newbie question while we're at it. In the newest version (5.40 AFAIK), how does one give territorial influence to other factions? When I got to the second or third era, I got a message saying I can cede land to other nations or tribes to make them happy, and now I'd like to cede some of my land to a nearby native settlement which I've fully surrounded, so they'll have some tiles to farm and fish.
Problem is, I can't figure out how to actually do it. The Territorial Influence button at the top brings up a tool where I can mark tiles with a black shade (I guess to select the tiles I want to gift), but then what? There's nothing else I can do with that tool, opening diplomatic communications with the relevant chief doesn't give me any relevant options, and I can't think of anything else. Can't find anything in the Pedia, either.
EDIT: Okay, so after some experimentation, I guess what that tool does is let you just unilaterally give up some of your territory after the end of the turn, and nearby factions will just appreciate it, I guess. Did I get that right?
It's a lovely mod, and I'm thoroughly enjoying exploring it.