Is there a way in the Reports Designer to set variables or settings so that a group will never get seperated unless it totally won't fit on a page?

For example, I have some POS data that is grouped by store and then by date. The date group doesn't make sense if part of one of the groups is on page 1 and part of it is on page 2. So, everytime that happens I'd like that group to start on a new page. I don't know how many records will be in that group so I can't just set the 'start on new page when less than' setting.

Any ideas?