FdxExecuteCubeView parameters

You're not missing anything obvious, it's the documentation that's missing...

From some internal resources, i see a comment like this over all the "filter" parameters of FdxExecuteCubeView:

'when the extracted cube view references an entity parameter called |!FDXEntity!|, this field needs to be set to the name of the entity dimension the extracted entities exist in
'if the cube view does not use an entity parameter called |!FDXEntity!| then this field can be left blank "" or as String.Empty

Dim entityDimName As String = args.NameValuePairs.XFGetValue("", String.Empty)

'when the extracted cube view references an entity parameter called |!FDXEntity!|, this field needs to be set to an entity member filter that controls the extracted entities based on the member filter
'if the cube view does not use an entity parameter called |!FDXEntity!| then this field can be left blank "" or as String.Empty

Dim entityMemFilter As String = args.NameValuePairs.XFGetValue("", String.Empty)

'when the extracted cube view references an scenario parameter called |!FDXScenario!|, this field needs to be set to the name of the scenario dimension the extracted scenarios exist in
'if the cube view does not use a scenario parameter called |!FDXScenario!| then this field can be left blank "" or as String.Empty

Dim scenarioDimName As String = args.NameValuePairs.XFGetValue("", String.Empty)

'when the extracted cube view references a scenario parameter called |!FDXScenario!|, this field needs to be set to an scenario member filter that controls the extracted scenarios based on the member filter
'if the cube view does not use a scenario parameter called |!FDXScenario!| then this field can be left blank "" or as String.Empty

Dim scenarioMemFilter As String = args.NameValuePairs.XFGetValue("", String.Empty)

'when the extracted cube view references a time parameter called |!FDXTime!|, this field needs to be set to a time member filter that controls the extracted time periods based on the member filter
'if the cube view does not use a time parameter called |!FDXTime!| then this field can be left blank "" or as String.Empty

Dim timeMemFilter As String = args.NameValuePairs.XFGetValue("", String.Empty)

So I assume those fields do nothing unless those Parameters are present on the cube view.