Can I get M1 to schedule one song every hour?

One of the hottest songs all over the world now is ”california gurls” by katy perry and I’d like to hear it  every hour. But I don’t want to change anything else! Will M1 schedule correctly if in this category ”hot currents” I have just one song?

Yes…you can have a category with only one song in it.  and if you put that category onto a clock that is used every hour of the day (in the clock line-up), then the song will schedule every hour.  You need to be sure to set the Artist Separation for the artist at about 15 minutes.