PCManFM and SFTP with keys

[Lars Noodén]

PCManFM works with SFTP with using a regular password.  But it seems not
to work with keys.  I don't see a way to get it to prompt for a key, is
there one?  I've tried loading the key into the agent using ssh-add and
while that works for the text-based sftp client, PCManFM seems to ignore
the agent.  PCManFM should at least find the key in the agent, shouldn't it?

Regards,
/Lars