2D vector operations are just as important as the 3D ones and having individual commands for them is very useful for faster vector operations.

Command syntax:

vector1 vectorDiff2D/vectorAdd2D vector2

vector1: 2D or 3D vector (Z component is ignored)
vector2: 2D or 3D vector (Z component is ignored)

return: 3D vector with Z=0

Example of usage: vector operations on UI elements or map.