Custom System object creation in EP 7.31
We have upgrade portal from 7.0 to 7.31 .
We have one system created for accessing non sap application .
This system is cutom one created from PAR file.
But in 7.3 while creating system we not able to see multiple option like EP 7.0.
in EP 7.0 we have 3 options 1. system from Template 2. System from PAR 3. from Folder.
But in EP 7.3 i can see only one option that is system from Template.
Then how can i create my custom System?
Thanks in Advance,