Ansys Workbench mesh problem
 

I will use Ansys Workbench for the mesh generation, but I don't know it. I used only Ansys Gambit, so I have some problems which are related to Workbench.

Firstly, there is a toolbox problem. It does not contain component systems. How can I solve this problem?

Also, I will analyze the internal flow with Fluent. My geometry is like a cylinder, but it contains some other parts. Which mesh type should I select for the best results?

Your helps are very important for me.