Hi silverwoods, there are some settings under Options > Snaps > "Straight snap options" that can get you close to what you want.

If you uncheck "Vertical snapping" that will disable the z direction snap. The Tangent and Perpendicular options are for when the first point is on a curve, those can also be disabled.

Then the remaining x and y snaps are controlled by the "Snap angle" option. By default it is 90 degrees meaning you'll get snaps at each 90 degree increment from the x axis. If it was set to 45 degrees you'll get 8 straight snaps in the x/y plane, etc... You can set it to 0 which will make only the x-axis snap and effectively disable the y axis snap.

So with that you should end up 2 straight snaps happening, surface normal and x axis. Hope that helps you for now.

I'll see about disabling the x-axis snap too when snap angle is set to 0 for the next v4 beta.

- Michael