snapping to grid points.

[Stealth]

when using grids to draw, is there a way to get xara to snap to only points? lol i know i suck at art haha! but i think im getting just a tad bit better. no really today i drew a head and the other day i drew a car. sorry for the blank page. at least i figured out how to draw on an isometric grid. i was using serif draw plus and i noticed that x4 has a psuedo 3d (which basically uses an isometric grid with snapping to angle. i know how the concept works now but im having some trouble snapping to the points. sure i could draw a flat car or a flat person but id rather keep at it till i understand depth. my current goal is to learn to draw depth through using an isometric grid.