Is it possible to specify a derived tag expression in a UDT parameter? For instance, I want the expression from the parameter to be {source}/25.4 but it’s being converted to null/25.4, which I imagine is because it’s trying to substitute the parameter source which doesn’t exist. Is it possible to prevent the parameter from trying to interpret other parameters like this? I tried escaping like \{source\}/25.4 but that didn’t seem to work. Surrounding the parameter value in quotes didn’t work either, i.e. "{source}/25.4"