Shortcuts to switch buffers conflict with entering special characters on macOS

[Minnozz]

When Use Alt+[0-9] to switch buffers is enabled, I cannot enter a euro sign (€, entered with Alt+2) on macOS.

Would it be possible to ignore (for instance) Fn+Alt to allow the normal OS function of these key combinations?

[lorenzhs]

This is similar to #67. I don't know whether we can detect Fn+Alt. Since I don't have a Mac, it would be rather helpful if someone who does own such a device could contribute a patch.

[Minnozz]

I've done some experimenting, and unfortunately it seems like there is no good key combination available.

Without a custom event handler:

• Alt+2 results in €
• Alt+Fn+2 results in €, but Fn is not visible from JavaScript
• Alt+Ctrl+2 results in 2
• Alt+Cmd+2 opens a bookmark/favorite in Safari
• Alt+Shift+2 results in ™