Making field as mandatory in Forwarding order application

Hi,

I am working in SAP Transportation Management UI.

Please help me for below questions.

1.In forwarding order application,i want to make particular input field as mandatory. I know if it is Web Dynpro ABAP we will selet the state property of input field as required. We have to call 2 methods(Either CHECK_MANDATORY_ATTRIBUTES or CHECK_MANDATORY_ATTR_ON_VIEW) for checking mandatory.

But SAP TM is desgined based on the GUIBB concept and integrated with FBI and BOPF how it can be done here?

2. In same application, i want to hide some tabs based on the role assgined to user. Where will i have to write this code to check what are the roles assigned to user and based on these i should display or hide the tabs.

I believe we have to enhance the existing configuration to achieve the above points. But not sure how or where to enhance?

I have good exp on Plain Web Dynpro ABAP.

Please guide.

Thanks,

Bharath.