I should apologise here, as I should have specified in my comment https://github.com/rtyley/agit/pull/103#issuecomment-36471876 that while I thought the screenshot represented a reasonable look-and-feel (ie using a restricted set of options in a list box), the preferred list of options was actually mentioned in https://github.com/rtyley/agit/pull/103#issuecomment-36471104, ie the list would be this:

* Manually
* Schedule daily at... (I'm in two minds about this, but on balance, fair enough)
* Every minute
* Every 5 minutes
* Every 15 minutes
* Every hour
* Every 4 hours
* Every day
* Every week

I wasn't actually anticipating you implementing the 'Schedule daily at...' functionality, and initially I was going to ask you to take it out, because I wasn't sure it was worth the extra code and requirement for an additional permission. I'm still rather ambivalent about it, but if you think it's worth having, then it can stay in...