If you have MIFARE® Classic read items or MIFARE® DESFire read items defined they will show under the MIFARE® tab in the properties window.
Here you can manually execute the read definitions to obtain sample values from a MIFARE® card.
To setup the mappings for MIFARE® Classic read items or MIFARE® DESFire read items, first select the desired display or storage object and then set the read item as the source.