I just went to do this and realised that I can't run FMRTE on Linux so I can't import my own leagues (trying to do the Scottish Championship and Scottish League One).
Is there any way to generate this data using the normal FM editor? I can't really put Windows on the machine I'm using right now and I don't think there's a way to get FMRTE working otherwise.
Sorry, only works with FMRTE.
I've tried a lot of methods, and this is the best.
You can find the Championship in SCO2 folder. I'll upload the SLO when I can.
https://mega.nz/#F!Vw5zEQAa!lpE8fJ0w4GfB5tMtillJjA