The Administrator role has limited permissions for the project settings

[Alexandra Rog]

I'm a new user of Jira Service Management and as an Administrator, I'm trying to customize a test portal - "Customer Service Pilot". 

However, I've noticed that I have limited permissions for the project settings. 
I'm not able to open and manage:
1)the Request types;
2)the Portal settings;
3)Email requests; 
4)Customer notifications and others. 

Please advise why my permissions are limited. 
My project role: Administrator + Service Desk Team. 
Thanks!