Yes, I get that too.
I tried both Alt+1, Alt+5, Alt+6 and copying and pasting £ from another editor and neither worked.
Do you have £ as a direct key on a UK keyboard?
Could you use “Pounds” and “Euros” for now until we find a solution?
It must not be supported by the Slack UI API that we use from Epic to make the SkookumIDE.
Since the API is written by Epic it might be tricky, though we’ll take a look…