Oh, I'm sorry, I meant doubles as in person A uses CIS and person B does too, which then become incompatible.
In my game I had teams from France only participiating in the CL and not in any other vanilla continental cup, as probably the Latin Cup messed things up.
Yes, with a template I mean that we could load up the editor, and just point and click, or drag and drop. Lets say I want to make Greenland, or any other non-Fifa nation like Guernsey. It would be so much easier if you could just click "create new nation" and get to chose between a few much used preformatted templates, some empty ones, or user generated templates and just go from there. No need for deleting an existing nation, or using a defunct one. And then just drag and drop the options. Click the amount of teams, conferences, cards, etc. Drag a relgation play-off to it, chose a European qualifiaction method to it, copy the rules of an existing division, etc. If the editor then comments on every step (ie. "need two more teams", or "you have one team too many. Do you want to build an extra round or delete one participant", or "this league has no relegation. Are you sure" etc)
I have a lot of ideas for making new leagues or cups, but I never start them because all the issues I read on these forums. The combination of the huge amount of work and the high probability of conflicts with other peoples work, scare me.