Changing 'entries_per_page' requires restart of foreman to be applied
- Click More > Settings
- Find 'entries_per_page' change to a desired value, hit enter
- Open Hosts > Facts or Reports > $host
The old value is still used until the foreman is restarted.
Behavior of settings modification should be similar to other settings (i.e setting puppetrun to true doesn't require restart) or at least be mentioned that this change will require a restart.