How to input or change text (label) into existing project parameter(s) of a title block

Hello all,

I am trying to adjust the input of the text labels in the title block. These are specified as project parameters and shared parameters.

As can be seen I can find out the project parameters but I am unable to connect them to the nodes ‘Element.GetParameterValueByName’ or ‘Element.SetParameterValueByName’ as parameter name. He does not recognize the project parameters like this.

Can someone please tell me how to adjust the input / value of the title block?

TITLE BLOCK(family):
afbeelding
TITLE BLOCK(output):
afbeelding