Mecanim Vector Parameter doesn't show up for usage in transitions or blendtrees ?

Unity Engine
1

Anyone know why?
I can see floats and bools, but if I try to use a Vector parameter it wont show up in the list of Parameters when editing transitions or blendtrees.
Is this a bug??

2

you are correct there is no vector parameter, you would have to use floats and int’s

3

So… why would one ever use the Vector parameter if it can’t be used to control anything in the state machine?