How can I import all my keys from the .ssh folder at once?

If the Desktop version on Windows or Linux has some kind of CLI interface, I could create a script for this. Or are there other options?

Opening each key, copying, pasting, and filling in the name will take too long—I have at least 30 keys.

I am thinking something like:

bw get template item | jq '.type = 5 | .sshKey.privateKey = $(cat foo_rsa)' | bw encode | bw create item

After login, of course.

bw login

What is your process for importing your .ssh keys?

Were you able to do what you wanted with either bw (or bws)?