How to view all the standard services ?

Good day.

I'm doing some investigation regarding gateway and Odata standard services.

I have activated gateway but then when I access transaction /IWFND/MAINT_SERVICE, I actually see very standard services for business transactions.

Is there anything specific that needs to be done to activate them ?

for example, i don't see anything for offers, service orders etc. 

I am using component : SAP_GWFND : 740 SP0009 on a CRM 7 with EHP3.

Thanks for any information.

Regards,

Helder