No, this is not possible. But you can change some of the ic matching reports (please create copies to avoid problems with updates) to show the I#None member by enhancing it using the Report Designer.
To get the missing information, you need to add a second DataAdapter based on a CubeView showing the information for I#None
Currently we do get all our ICs listed in IC Matching for all IC Entities. However we have a case where we have mapped towards Entity member None and want it to be listed in this view.
I have tried to add None into the Entity hierarchy and also specified #I:Top om IC Maching Parameter. IC Constraint on account is also set to Top
Not sure if this is even possible or if I am missing something.