Drag left mouse from top left corner of the screen for UI scaling. It might get blurry though, but it will be bigger

Yes

viewtopic.php?p=1378#p1378

I see on your character planner link posted above that there is no Mauler class available on Eden, unlike in the main client. So, why is this combination not greyed out? All private servers I played on did not gray out their unavailable combinations, probably because editing this menu is a pain in ...

Quoting from the FAQ
faq

Accounts
One account per player.

Account sharing will be allowed.

Multiple players in a household will be allowed.

Dual logging will not be allowed.

Dual logging is logging into different realms at the same time.

Don't think you can rescale custom UIs in general as they have a fixed pixel size, but you can play around with the setting in Windows "Make everything bigger". https://support.microsoft.com/en-us/windows/change-the-size-of-text-in-windows-1d5830c3-eee3-8eaa-836b-abcc37d99b9a Try setting i...