Merging Two Points

Two separate points can be combined into a single point using the Merge command. Select an independent point and the point to which you want to merge it. One of the points must be independent so that it’s free to merge with the other point. The other point doesn’t have to be independent, but it must not depend on the first. (If the second point could depend on the first, after merging, it would be defined in terms of itself!)

Merge Points

Merging two points is a handy way to fix any mistakes you make while using drawing tools.

See also
Splitting a Point Apart

Merging a Point to a Path

Splitting a Point from Its Parent

How To Use Split and Merge to Explore Constructions

Object Relationships: Parents and Children