Copy/paste using the keyboard does not work in Preferences / Vertical Edge Settings field

[mkupper]

Description of the Issue

I was experimenting with Preferences / Margins/Border/Edge / Vertical Edge Settings to better understand how it works and discovered that I can't use Ctrl-C, Ctrl-V, nor Ctrl-X to copy/paste/cut values to or from the Vertical Edge Settings field.

Ctrl-A for Select-all and Ctrl-Z for undo, and Ctrl-Y for redo also do not work in this field.

Ctrl-H for backspace works meaning the Ctrl key seems to be working but not Ctrl with A, C, V, X, Y, or Z.

Copy, paste, cut, and select-all all work if I use the mouse to right-click in the field and select Copy, Paste, etc. from the right-click menu.

Ctrl-C using the keyboard works to get the values from other Preferences fields meaning it's an issue that seems specific to the Vertical Edge Settings field.

This is not a v8.5.4 regression as older versions such as v8.3.3 also behave the same way with the keyboard's Ctrl-C, Ctrl-V, and Ctrl-X not working in the Vertical Edge Settings. A comment in issue 9296 from January 2021 also mentions the issue with using the keyboard in this field. I'm creating this one as a separate issue as 9296 is asking for another feature with a suggested workaround being to copy/paste the values.

Expected Behavior

That the Ctrl keys work the way they usually do in text/numeric fields.
Ctrl-A to select all text in the field.
Ctrl-C to copy the selected test into the Windows clipboard.
Ctrl-V to paste from Windows clipboard into the edit field.
Ctrl-X to cut the selected test into the Windows clipboard.
Ctrl-Y for redo from the redo-history.
Ctrl-Z for undo the undo history.

Actual Behavior

The Ctrl keys other than Ctrl-H seem to do nothing in this field. I don't have speakers on my computer and so don't know if there are any beeps.

Debug Information

(while this debug information dump shows some plugins in use the issue also happens with all plugins disabled)

Notepad++ v8.5.4 (32-bit)
Build time : Jun 17 2023 - 20:40:14
Path : c:\npp\npp854-RTM\notepad++.exe
Command Line : -multiInst
Admin mode : OFF
Local Conf mode : ON
Cloud Config : OFF
OS Name : Windows 11 Home (64-bit)
OS Version : 22H2
OS Build : 22621.1848
Current ANSI codepage : 1252
Plugins :
mimeTools (2.9)
NppConverter (4.5)
NppExport (0.4)

[ghost]

I'll try to resolve this issue.