Question: When in a report, the user saves a snapshot by going to Save As > Snapshot, this then appears under "Select a value" > Snapshot <date_time>. However, there doesn't appear to be any way to purge these once they are there.
Answer: While Purging Maintenance can purge auto-saved snapshots, it cannot purge user saved snapshot. There are no features for the out-of-box Altiris UI to do this.
The workaround is to purge these in SQL. The following instructions demonstrates how to do this.