How to change Property (ItemType) of Registered Feature in GeoSpatial Adminisrator

Hello experts,

Properties added during Feature registration has fixed ItemType, Is there any way to change it Property such as RichTextBox, ComboBox 

I know that this can be done with Primary Feature, but using that how to write to the Oracle Spatial database. 

Scree#1: Properties added during Feature registration has fixed ItemType. 

Scree#2: Options available for Primary Feature.