FM Editor Tutorial (Merging Leagues)

Hello,

I am a high-level beginner/intermediate when it comes to the Editor. I was wondering if there is a video that explains how to merge a couple of leagues into one and alter a national team. I was wanting to combine the Icelandic, Faroe Islands, Norway, Sweden, Finland and Denmark into a Nordic Super League and make a Scandinavian national team. If anyone has a video that explains how to do this (obviously the video doesn't have to be a Scandinavian example, it could any example of joining leagues together), as well I hope it can include how to sort out International competitions and European club competitions when you reduce national teams and leagues down a few.

To be honest, i would love it if there were any kind of tutorial for the editor. I really want to create a BENELUX league/competition (besides the regular competion), however, I am struggling (as in not succeeding at all) :s

I have no idea why it is so hard finding information about working with the editor. Isn't there a manual available or so?