Hi , 
I am new to Salesforce Partner community. I am using Salesforce Developer Org.
I do not find a Stand-alone component to choose in Service Not available lookup in Community Management console. Can someone tell me what are all the components to develop in my Org so I can select the correct static resource for Service Not Avaliable in Partner Management. 

Also, Please let me know how to test the Service not available feature for Partner community.