But, in short, is it possible for me to choose 3 or 4 different servers, to all be connected to Electrum?
No, just one, let's say "
main server" of your choice.
The rest (
peers) are just for security purposes since you can't just trust that a random public server is giving you accurate information.
And those don't have access to your wallet's addresses so it's not bad to keep it randomized.
I don't think that's possible. I'm okay with "Manual server selection": it only connects to my own server, but when my server has a problem, Electrum tells me it's lagging or offline. So if you want to use a few selected servers, I'd say pick one, and switch when there's a problem.
I think this option would be a good addition to Electrum, allowing people to configure up to 10 servers of their choice.
This allowed users to choose their preferred servers. For example, some forum members could share their servers, and anyone who wanted could use them, and Electrum would automatically manage them based on performance at the time of use.
Any server has its own set of updates/maintenances and may even experience slowdowns. If Electrum has a list of servers I prefer to use, it will manage this better.