Controling CST from Excel VBA

Hello,

I want to use excel to build structure and complete simulation in an open CST project file from VBA.

Anybody has any examples?

In the help there is a n example of how to build a brick, but I tried (without success) to ad a circle and cover it, add a parameter etc.
I tried to emulate the CST VBA, but I guess the objects and the syntax are different.

Help Please!