Swap and copy keys

[markus-1]

Hi Nick,

first of all, many thanks for the great software. I've been using it for the last few hours dialing in my new Corne, which was (mainly ;-) ) a pleasure.

Two things I missed from using ZSA's Onyx are swap and copy keys. Of course, they are not really needed, but when changing layouts they are very handy.

So, thanks again, and kind regards from Germany,
Markus