Feature Request: Use my (pre-existing) key pair

What's this issue about?

I cannot use the app until I have created a new key pair.

I do not want yet another set of keys. Why can't I set myself up using a set off keys that I have already generated (eg: the ones I use for my email)?

...sorry if this is a super-dumb question, but I am not that educated on PGP/GPG.

this issue could be also relevant if setting the app up on a 2nd laptop - thanks.