Michael G. Kazakov

Or with a separate menu action with no default hotkey

Surely, when I'll come to.

Also, showing tags and filtering according to them.

Probably that's not the issue - I have tests with Box.com, which use login in a form of email address too.

Preview should show more information for an app, such as basic file attributes but also useful ones like version information, UTIs, binary type. Similarly the preview for folders should show...

Perhaps calling a Service might help? http://magnumbytes.com/forum/viewtopic.php?f=5&t=365

- compare directories.

Also, regarding naming: It is not obvious in the SFTP connection dialogue, that the password field would used to decrypt the key. Perhaps, setting the field placeholder to "Server password...

Also, it's possible to check whether the key is available and can be decrypted right inside this dialog, reducing an amount of possible misunderstandings.

Nimble Commander does not do the previewing by itself, but instead it relies on the system-wide framework QuickLook to present the contents. To be able to show this additional information...