Somes questions

[PatQC]

Hi,
I've pretty new to rainmeter, I was once in the past few years before a user of samurize that I tried couple months but found it too much ram for my computer, so uninstalled it.
I've installed rainmeter and it seem quite promising, fast, maybe a little less customable than samurize. With the rainformerAIDA64 skins, it's pretty neat and I can make the change for many things (pretty useful for weather, time, calendar, network, cpu-ram, HDD, volume).
For the music, the skin that I found the more complete is Stylish music player.
However, I would really like to add a skin that can manage FM radio channels.
And also for emails from many accounts.
Any ideas where I could find this?

[balala]

However, I would really like to add a skin that can manage FM radio channels.

Not sure how, but maybe it is possible. Please provide us for first a source you would like to use, to can take a look.

And also for emails from many accounts.

This is completely solved for Gmail accounts, for instance. If you wanna use it for other provider, that provider has to support HTTP authentication (see the second paragraph here). If I'm not wrong, a while ago has been possible to control yahoo accounts for example, but since I'm not using it, I'm not sure how does it work right now. Probably here some will tell us how yahoo is working right now. Not sure about other providers, probably some of them can be used, others not (I suppose).

[PatQC]

I tested some old skins for fm tuner but they don't work anymore. Kinda give me hope for that, but I don 't see actual working skin anywhere.
For emails, that's for my hotmail and gmail accounts

[balala]

I tested some old skins for fm tuner but they don't work anymore. Kinda give me hope for that, but I don 't see actual working skin anywhere.

I suppose by "manage FM radio channels" you meant radio channels over internet, right? If so, my asking still remains: please give us a source (precisely a URL) which you'd like to manage. Then we'll see...

For emails, that's for my hotmail and gmail accounts

I can't say anything about Hotmail, because I'm not using it. But about Gmail, it is completely solved and there are a lot of such skins. Just a quick browse of such skins:
https://forum.rainmeter.net/viewtopic.php?f=27&t=34577&p=171155#p171155
https://forum.rainmeter.net/viewtopic.php?f=27&t=29806&p154120#p154120
https://forum.rainmeter.net/viewtopic.php?f=27&t=29239&p=152194p152194#p152194
https://forum.rainmeter.net/viewtopic.php?f=27&t=27699&p=147956#p144041
https://forum.rainmeter.net/viewtopic.php?f=27&t=23239#p122925
and so on.
And I again will promote my work (please forgive my doing this, but I can't resist). My Mirage suite (in a few days I'll publish a new version, which fixes the not working Weather skin problem and fixes a few other issues as well) also has a Gmail notifier skin and it can follow up to 5 Gmail accounts (not just one single). If interested, give it a try.