Marcel,

I know exactly what you're talking about and it's super annoying.

The best solution I've come up with is to create a daily repeating job, then have the conditional check a Schedule (like Rob mentions above), an external table ("does an entry exist for today?"), or some other reference like "are there maintenance contracts expiring in the next 30 days?"

I've built my own system a couple of times to do the above. One such example (before fiscal calendar support) was for a food service client -- they have a 13 period standard calendar, and repeating actions needed to happen every period, "quarter" and year.

To answer your final muse, as of I think the Dublin release, all of those "period" options in the filter that you've screen-shotted were hard-coded.. go figure. I doubt that's changed (and if it has, I don't know about it). For years I've wanted to disable/change that list.