Multiline Set Type for IObject not showing in WebUI

Hi,

I created a multi line set type, i.e. set type whereby at least one attribute is a key attribute.

Did below steps but no set type is visible in the IObject (product) screen:

1. Created set type with one attribute in the set type being a key attribute

2. Enhanced components PRDGENSET and PRDIOOV

3. Assigned set type to component PRDIOOV

4. Created UI configuration for set type

5. Checked that within component view PRDGENSET/MLSeteOV the UI config is created

Any ideas why the set type is not visible in the WebUI screen for the IObject?

Thanks,

John