Add new Performance Counter items

You can add new Performance Counter items by right-click on PerformanceMonitor --> Add Items --> Performance Counter:

A dialog then pops up to allow you to configure the items to be created:

You MUST click on the Browse button to choose from all system predefined Performance Counters to add.

The Browse button brings up another dialog:

In this dialog, choose one or more Performance Counter and click Ok. You can also search for keywords in the Search bar on the top.

For example, if you want to monitor the incoming and outgoing internet connection speed, you can choose "@IPv4/Datagrams/sec":

Click Ok, you will see a new Performance Counter is added:

Now you have added a new Performance Counter item, you can use it as the same as other OPC items.