<Action Name="Unused Visible Variables" Uid="1d283056-d54f-4089-aa84-f86b9fc67a90" LogicUid="af8bf59f-b05b-45b4-bffd-0e4f9d32e7e9"/>
Objects to be checked: All visible variables.
Customizable parameters: None.
Check criteria: Check yields error, if a checked variable doesn't have any children.
Auto-Fix: Unused elements detected by the check are being deleted.
Note: Functionality of this action is also included into the Unused Objects action.