Bug 478007

SUMMARY
The "extend selection" shortcuts in Qt text input controls (except for certain applications which implement it themselves such as Kate) are always mapped to ctrl+shift+left and ctrl+shift+right (and shift+pos1/shift+end and so on). This works fine as long as you keep the default bindings for text movement (ctrl+left/right, pos1/end, ...). However, if you rebind them to e.g. alt+left/right and meta+left/right, the extend selection shortcuts no longer match up and as far as I can tell there is no way to rebind these separately.

STEPS TO REPRODUCE
1. Bind "Backward Word" and "Forward Word" to alt+left and alt+right (in Shortcuts -> Navigation)
2. Select a normal Qt input field
3. Try alt+shift+left to extend selection backwards a word

OBSERVED RESULT
Nothing happens, as ctrl+shift+left is still the shortcut for that action

EXPECTED RESULT
alt+shift+left selects backwards a word, or there is a separate shortcut you can set for that like in Kate

SOFTWARE/OS VERSIONS
Operating System: NixOS 23.11
KDE Plasma Version: 5.27.9
KDE Frameworks Version: 5.112.0
Qt Version: 5.15.11
Kernel Version: 6.1.63 (64-bit)
Graphics Platform: Wayland
Processors: 24 × 13th Gen Intel® Core™ i7-13700F
Memory: 62.7 GiB of RAM
Graphics Processor: AMD Radeon RX 6800 XT

ADDITIONAL INFORMATION