Creating a Symbol from Scratch in OpenUtilities Update 15

We are working with OpenUtilities Substation connect edition update 15 and we have some questions as follows:

1- How can we create a symbol from scratch for a transformer? The resource we have is outdated (V8i).

2- We don't have access on the Component Center. Who is granting this access? I thought we should have it with each software we bought.

3- Are the conduits modeled inside OpenUtilities or should we use OpenBuildings for this application? 

4- Similar to Q3, should we model the normal power panel in OpenBuildings or OpenUtilities.

Finally, are there any updated tutorials for this software?

Any help will be appreciated.

A.Y.