I'm noticing that there isn't a geo unit "access authorization" drop down on test profiles? I'm wondering why that is, does geo units not matter for test profiles?

Is it possible to have a dynamic content block collapse completely? An example of the goal we are trying to achieve. Within a dynamic content block we have three variations: the default, block A and block B. Block A will appear if the profile is 21-30 years old. Block B will appear if the profile is 31-40 years old. If the profile doesn't fit within either of those age ranges, we'd like for this block to collapse and disappear completely. If we leave the default block empty it does collapse but ...