How to display current Options in Result Processing window

Hi, 

I'm preparing custom result processing plugin in TestStand. According to TS help I can use Base.OptionsDescriptionExpression to set Options column in Result Processing window. In this column user can see current settings summary. I want to display report directory path in it, just like in the Simple Text Report example. Unfortunately I'm not able to do this...

I'm using FileGlobals.ModelPluginComponentDescription.Default.InitializationExpression to set default report path, in plugin specific options, using the following expression:

 #NoValidation, ModelPlugin.PluginSpecific.Options.ReportOptions.Directory = RunState.Engine.GetTestStandPath(TestStandPath_Public) + "\\Reports"

Next I changed FileGlobals.ModelPluginComponentDescription.Default.Base.OptionsDescriptionExpression into #NoValidation, ModelPlugin.PluginSpecific.Options.ReportOptions.Directory which should contains default report path evaluated in InitializationExpression, and this Directory should be displayed in Options column in Result Processing window.

I do not know what I am missing, because it is not working. When I'm using breakpoint in Model Plugin - Configure Standard Options to see the Parameters.ModelPlugin.Base.OptionsDescriptionExpression it displays:

#NoValidation, // disable validation because top-level ModelPlugin property exists only at runtime

"<replace the value of FileGlobals.ModelPluginComponentDescription.Default.Base.OptionsDescriptionExpression with a string expression which describes the current options, or with an empty string if your model plugin has no options>"

So it looks like my Default.Base is not copied into Parameters.ModelPlugin.Base

So how to display current Options (at least report path) in Result Processing window? Please help