Inactive systems

Hi all,

In the GUI of Satellite 5 there was a section for Inactive Systems which was very helpful to see if any system was not checking into Satellite.

In the GUI of Satellite 6, the only thing that I found was using the "last_checkin = " in the search under content hosts. But I would like to see if there is specifically a hammer command to show this for an alert script that I would like to make, or a way to have that section displayed as a sticky in the GUI for a quick look? I looked but have not had any luck.

Thank you!