Text of "Message" user parameter type accepts $(...) param values

The "Message" user parameter type in the Manage User Parameters dialog currently accepts nothing but straight, typed-in, static text in its text window. Please have the text window operate as the usual FME full text editor window. That way one could enter user parameters, i.e., in $(parameter_name) format, as part of the message text. In many of my workspaces, I create scripted parameters that hold default pathnames to output files, and I routinely use those parameters--and others, like user-chosen parameters--in other parameter definitions. If the Message type parameter could accept parameters, then I could message the user dynamically, e.g. "NOTE: Default store file (.ffs) will be: E:ProjectsDowntown Address Locator_FFSstreets_dwntwn.ffs," where the filepath comes from a user parameter, which itself could have been built in a previous scripted parameter. This capability would just allow workspaces to be just that more dynamic.