Make the Add Component control part of the output port

[AdRiley]

I think the circle should be smaller than this. Maybe the same size as the one on the vector widget?

Problem:
We have 2 different UX paradigms for adding a new component. If a user discovers one they may miss the second.
Solution:
We should make the add component button part of the output port.

Question should it position itself where the new component will be added? So if there is already a component in the default position it will move to where the empty space is?