Hi looking for a solution

i'm a reseller and although my package offers loads of different country's i tend to sell just one .i have edited the m3u to include just this country adding logos categories etc etc and it works great but my supplier cant use my file as the categories would mess his whole list up ie he would have lots of countries then news, sport movies etc as i don't think you can have sub cat-orgies in a m3u ie click UK then have separate categories for news sport etc

anyway now when i create a account i have to manually edit my m3u with the new username and password and save it if i just want to give them the one country which is a pain in the bum.

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Any ideas on making this easier?