changing of the model of the building blocks

in the construction window, there is an icon with a truss structure.
But when you click on it it only produces a block shape.
I want to like with a screen, have the possebility to change the model.
And also adjust the size.

Maybe this is already possible, but am i looking at it wrong?

Yeah you should be able to just drag and drop any 3d object file onto the structure fixture icon you created along the bottom of the page on the stage construction page, just like you do with the screen fixture group.

thanks Dave.

Will try it tommorow.

Did not think of it, because i did not see a drop down menu where you can choose your model like with a screen.
After you dragged it on your screen.

Ps your mask patch works perfect for me.