Using mass update
Now this looks quite good—we can see all of the monitored data in a compact form. Those 1 results that denote the status for various servers—what do they mean? Was 1 for a running state, or was it an error, like with exit codes? They surely aren't intuitive enough, so let's try to remedy that. Go to Configuration | Hosts, and click on Items for Another host. Select all three server status items (SMTP, SSH, and Web), and then look at the buttons at the bottom of the item list.
This time, we will want to make a single change for all of the selected items, so the second button from the right looks like what we need—it says Mass update. Click on it:
Now that's an interesting screen—it allows us to change some parameters for multiple items at once. While doing that, only changes that are marked and specified are performed, so we can change some common values for otherwise wildly differing items. It allows us to set things such as the Update interval or any other parameter together for the selected items: