Hi Burr, it would be possible but in most cases you can get the same result through other means.

Like Pilou mentions you can draw a line and use z-axis snap to build a point "extruded" in the up direction.

For extrude along a path - that would be the equivalent of making a copy of the curve starting at that point, so you can use the Transform/Copy command to get that same result now..

Sweep could be potentially different, but for planar curves using Offset would produce that same result as sweeping a point too.

- Michael