From FreeCAD Documentation
- DataX,Y: The point at which the leaderline is connected to the View.
- DataLeader Parent: The View to which the leader is attached.
- DataStart Symbol: The symbol at the start:
None, 
Filled Arrow, 
Open Arrow, 
Tick, 
Dot, 
Open Circle, 
Fork, 
Filled Triangle
- DataEnd Symbol: The symbol at the end.
- DataWayPoints: Nodes on the leaderline.
- DataScalable: Leader scales with Leader Parent.
- DataAuto Horizontal: Forces last leaderline segment to be horizontal.
- ViewColor: Pen colour for the leaderline.
- ViewLine Style: 0 NoLine, 1
Continuous, 2 
Dash, 3 
Dot, 4 
DashDot, 5 
DashDotDot
- ViewLine Width: Width of leaderline.
