Finnish layout of Macbook1,1 does not allow outputting @ character

[jarnoh]

Macbook1,1 (A1181, from 2006) has no right option/alt key, but an "enter" key instead. With this keyboard layout, it is not possible output @ character, which would be needed for entering email addresses for test recipients. The advanced keyboard layout settings do not appear to do anything to help the issue, could be that they do not work at all?

I can see three possible ways to fix this:

• make right alt-key configurable
• add a left-alt-2 option for writing at character
• to fix Changing to English keyboard layout does nothing #72 so that it would be possible to type at character with English keyboard.