Hello. i need some help understanding things about editing m3u playlist.
1.) Is it possible to edit m3u playlist i received from provider?
I received m3u link i put in my android TV and watching it through the app.

2.) I want to remove some categories, remove some channels from certain categories and create more categories from channels that are innitially sorted in one category. Is it possible?

3.) If possible, when i edit and remove channels from some categories, also keep some of them untouched, what will happen with channels provider adds from time to time to some category, or what will happen if some channel goes down, and provider repairs it and push it back? will they be in the edited playlist?

4.) Is there any tool for thing like that? Please suggest

I am ready to pay for it, i read about xtream-editor but their gold plan works only for 5 playlists imported, i need it to be a lot more than 5, unlimited if possible, so i can manage it for each of my friends. most of us have the same provider, but if i figure it right, for each of their playlist i have to edit it, no matter if its the same provider.

4.) how these links work then, my m3u url have some kind of username and password in url, if i edit the list, does it changes the url i need to import to tv app?

5.)Do i need some kind of hosting if these edited lists are not the initial one that i got from the provider? Asking because i thought that after editing playlist its not the same one i recieved from provider, so url should change.

Thank you in advance for helpig me understanding how it works...
best regards!