Reference tag in Tooltip

Good afternoon.

Is it possible to fill the tooltip of a tag with the value of another tag?

I’m trying but it doesn’t work.

UDT:

UDT instance:

Best Regards.

does it not allow you to use the interface (with the treemenu) to create the binding?

For properties like the ToolTip, only parameters can be accessed. But I need to access another tag of the same UDT.

Best Regards.