Adding Sub-features not working

 

We are capturing data and want to link additional data a single spatial element i.e. a single carpark feature element with the carpark surface materials properities and, in addition, the subbase material properties linking to the same carpark element. I thought that creating sub-features would possibly be the answer. Please note that I have no programming skills so am trying to do everything within the GSA using the geo_example as my guide.

My approach;

I have a polgon feature with properties i.e. Carpark ;    Materials, area etc 

I have added sub-features (Geometry Type data). > Base Data

In the sub-features I added the properties require;   Thickness, Material etc

In Methods I added a new modeless dialog method and ticked on include in Command Manager

Dialogs I added a new Dialog Definition; which linked back by name to the newly created Method. I them added the dialog items I wish to see into my new dialog.

Updated the Command manager

And it does not work. I am not seeing the dialog form. Any ideas where I am going wrong or is my concept flawed from the beginning and sub-features are not suitable. I have read the help file but to no availe.

I am using Bentley Map V8i 08.11.07.113 and Microstation V8i 08.11.07.171

 

TIA

Anne