Improvement Ideas for SSH Connection Dialog

I've got two ideas to improve the 'SSH Settings' dialog.

1. I'm quite a newbie and I had no idea what "Passphrase" was supposed to be. Is it some laravel-thing or some additional server-security thing I didn't know about, I had no clue. A friend pointed out that it's related to the SSH Key and I had completely forgotten that I had added a passphrase to the SSH Key. So it would be nice for newbs to call it "SSH Passphrase", that would make it obvious. Also, it would make sense to have it in proximity of the "Private Key" field.

2. I would greatly prefer it if you could not close the overlay by clicking outside of it. I already closed it at least 3 times by accident, mostly be clicking on my copy&paste tool once too often. The X would really do, alternatively a 'cancel' button would be better than the current solution.

Thanks & Greetings