----prompts for Open1
Opening first point: 
}f줧Ĥ@I: 
Perpendicular to oppsite edge point: 
ܹﭱtuWI: 
Opening width: 
}fe: 
Draw 2 parallel lines at opening? (if so, set proper layer first) [Yes/No] <No>: 
}fBeu? (YO,Х]wAϼh) [O(Y)/_(N)] <_>: 