I am trying to do a simple thing. I want levels to show both relative and absolute elevations. To do this, I need to extract Project Base Point elevation value and assign it to a shared parameter. This shared parameter was used within level head family and as a project parameter.
I successfully extracted Project Base Point elevation and tried to update the project parameter values. The problem is that this node that I used (Element.SetParameterByName) only updated one of the levels - not all of them. How can I use one specific value and distribute it to all elements of category?