How to insert a non printable character 'unit separator' (ASCII 31, octal 37) into Notepad++?

[BrokendubZ]

I’m trying to insert a non-printable character ‘unit separator’ (ASCII 31, octal 37) into Notepad++ but can’t figure it out, this character will be used further, by copy/paste. The ASCII table says that there is a hotkey for it - ALT+31, but in N++ I see this character ▼ instead of US.

[Ekopalypse]

@BrokendubZ

I assue because you used ALT+31 and not ALT+031

[BrokendubZ]

@Ekopalypse ooh, right! appreciate you help