feature request: timed acceptance

[boli]

hi. thanks for the project - its very useful

is there any chance of implementing timed acceptance for a key that requires confirmation?

when im using ansible i often fire up automatic connections to 50 servers in a very short space of time.

it would be nice to be able to tick a box and say 'accept this answer for the next 2 minutes' - and have it autoaccept any confirmation requests for the same key within the next 120 seconds.

thanks