Double click on an ethernet terminal and go to EtherCAT tab. Click 'Advanced Settings'. There's only 'State' item available the under InfoData as it can be seen below. We will add the other items as well. 

Expand 'General' and select 'Behavior'. Under the 'Info Data' section, select the items you want to enable and click OK.

Now the new items are added under 'InfoData' and you can link them to your variables in the PLC program.