The best way to add generic entities (which is what all recent extensions create) to a management zone is to do it based on the entity type. You can find the entity type on the bottom of the page where the extension is configured:
Example management zone:
Generic entities don't show up on the Smartscape page though just as an FYI.
I am trying to use Management Zones, with the DB2 extension, but it seems to only work for the member tile, but not the host or the instance tile.
This is one of the metric queries for the tile that does not work:
Any thoughts on this?