Created attachment 178355 [details]
English + Romanian + Spanish how they are now they are now

SUMMARY
Regression compared to Plasma 5.27: Cannot edit the Label anymore

STEPS TO REPRODUCE
1. Open System Settings.
2. Navigate to Keyboard.
3. Click on the Enable toggle to be able to add a few layouts.
4. Add one or more layouts.
5. Try to find a way to edit the Label as before.

OBSERVED RESULT
The current interface (see the attached print screen)...
Is missing the "Label" column, which was displayed like this:
https://forum.manjaro.org/uploads/default/original/3X/e/4/e4e78293721b938b2308c10c4a13e602601072ce.png
It seems that the labels have been moved in front of each language, which is fine, but they are not editable / customizable anymore.
Because of this we are now stuck with some country codes instead of language codes, which are always 2 letters and always lowercase.

EXPECTED RESULT
I expect to be no regression here.
Meaning to have at least the same functionality as before.
When I first discovered that I could double-click the flags to edit them I thought it was a great feature, at least compared to Windows.
So, I started editing them to be initial letters of the languages like:
En, It, Ro
This improved their visibility in the system tray, but I still thought that it was not enough so I changed them like:
EN, IT, RO
And I have used them like this for years.
Besides the way better visibility on small screen than the lowercase counterparts, they also helped my parents to understand what language layout is the current one and what they have switched to.
For them and not only them, but also some of my friends things like:
us, de, es
country codes doesn't mean anything, but if they are:
en, ge, sp
Or:
eng, ger, spa
Are much easier to understand.
I don't know if before it was possible to also put 3 letters, like Windows 10 and 11 uses, as I never tried it.
But now you just cannot change anything and it's pretty bad for visibility and accessibility.

Please fix it by allowing us to at least be able to edit / customize it like before!
And like before allow us to make them mixed case or upper case if we want to!
The improvement of being able to move entries up and down by dragging them compared to clicking buttons how it was before it's not worth much if such important functionality is lost.

And if you want to improve this a bit too compared to how it was before.
Put the label on a separate column to be more clear that it's editable.
Before, being under the flag it was pretty hard to discover.
Probably this is also the reason why on redesign was lost as I assume even developers didn't know that it was there.

And as a second improvement, allow it to be set as 3 letters too!
Maybe someone would prefer it like Windows displays it or knows that their parents would understand better with 3 letters.

I guess some designers there thought the same things, like upper case letters are easier to read and 3 instead of 2 are also the better to understand.
And that the language initials are more important than country codes in the native language of the country:
This is how Windows 10 has it:
https://www.tenforums.com/attachments/general-support/232307d1556719712t-windows-10-keyboard-language-keeps-changing-languagechoices.jpg

Of course if you want make this (the 2 or 3 upper case language initials) the default it would be great, but I opened this to at least restore the functionality that was lost and that would make me happy.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma:
KDE Plasma Version: 6.3.0
KDE Frameworks Version: 6.10.0
Qt Version: 6.7.2
Kernel Version: 6.12.13-amd64 (64-bit)
Graphics Platform: Wayland

HARDWARE SPECIFICATIONS
Hardware: Laptop Dell Inspiron 5770 (17" 1080p@60Hz screen)
CPU: Intel® Core™ i5-8250U CPU @ 1.60GHz
GPU 1: Mesa Intel® UHD Graphics 620 (main)
GPU 2: AMD Radeon R5 M465 Series
RAM: 8 GiB (7.7 GiB usable)