District's should be able see which students are counting as "Enrolled" on any given day (without having to go into Wisedash). This could function like a collection, but would not be used as a snapshot. Once TOS is taken there is really no easy way to see what students WISEdata is counting as enrolled on any given day.
We are going to work this into our next development cycle and have ready to go for release late September. The plan is to add a date picker to the upper left ‘Enrollment’ chart which would indicate ’Enrollment as of: ’ and then you would pick the date. It will default to current date.