The old Windows vncviewer had an option for emulating 3 mouse buttons. The new one does not. This can be a problem with devices which lacks 3 buttons. This includes many laptops.
Tested that checkbox setting persisted through restart for both Options menu in login and F8-menu. Verified with Xev that emulation works as intended.
Still needs updated screenshots for adminguide.
Function works as intended, options look good both in tlclient and vncviewer, doc looks good. Relnotes look good. Tested on Fedora 31 and Windows 10.
Some of the translations for the option "Emulate middle mouse button" in client options is too long, or on the verge of being too long. We should shuffle the UI around to give this option more room.
This was an issue for translations in:
Moved it to a separate line so we don't run out of space.
Tested this on the languages that had issues (fr, ru, it), and it looks good now!