Bentley editor



Hello, 

Sorry if its a wrong forum thread, but I am very new to bentley, and I can't seem to understand why according to tutorial that I am watching I can't follow steps that they provide to do an ortophoto section for facades? It I can't do merge, it does not show anything, only element selection and thats it. 

What could be the problem or what do I need to do?

Thank you.