Failed Job Delay - Queue settings. New field. Not sure what it is

Hey all,

I've updated my Queue config and upped my ttr to 60 seconds in my queue beanstalkd config.

I went into my Forge queue settings to change the Timeout field to 60 also but noticed a new field that I'm not sure what is does.

Failed Job Delay

What does this do/should I set it to?

Also noticed 'Rest Seconds When Empty' which I'm not sure if I remember, but it has a default of 10 which I assume is ok?

Thanks as always :)

Ralph