The Points module is made to give you specific tools for working with point clouds. It is still in development.
These tools are already available:
- Import Point Cloud: will import coordinates for 3D-points from a text file
- Export Point Cloud: will export coordinates for 3D-points to a text file
- Polygon Pick: to do
At the moment, the points cloud workbench has no automatic routines to deal with the imported points.
But linking against the points cloud library (the windows version of FreeCAD already has that capability) you could
use python commands to further process your data, see discusion here and here (german sub-form).
Another interesting discussion here (english Help-Forum).
Of course you could also use the draft workbench within FreeCAD and connect the points using draft elements.
Using snap-mode "end-point" will ensure snapping to the points.