[PROBLEM] Structural framing type orientation

Hey guys, i have yet another problem for now, well, more like a question:

I have Some structural framing types along some lines on my project, my objective is to make kind of a screen, the thing is that in one of the sides the framing is facing the wrong way (in red in the image), is there a way to change this? by the way, i’m a newbie in dynamo, so any tips or suggestions for what i’m trying to do would be appreciated.

Also, i would like to limit the height of my screen, so all elements cut at that height, is there kind of a limit node or something?, or is it better to have the bottom and top lines and try to randomply place points between them?


Thanks and i’ll see you guys later ;D!