Make The Highlited Movement Area Smaller.

Hi Guys!

I’m very new to Unreal Engine and have a quick question that I have been trying to work out for hours now. When controlling motion from a motion controller (VR) I cant move in front of an object (the couch in the Realistic Rendering example). It appears that the marker is too large to navigate between the couch. Is there a way to minimize the navigator indicator so as to fit between the couch and the coffee table??

Many Thanks!!