unfortunately there is till no GUI option for automatic-purge
However, we tried to create 3 automatic purge tasks.
Keep 8 mds revisions, 6 revisions for domain DOM1 and last 5 days for domain DOM3.
Adding this seems to work. But when we run "show automatic-purge commands", the have all the same value.
Not sure if now my commands are wrong or if this is a feature(bug).
Attached is complete output (MDS R80.40 HF T91)