I am using the draw.io plugin for Confluence. I am trying to make an anchored connection to the bottom middle (or any of the bottom 3) anchor point of a UML class object. The problem I am having is that when I move the cursor over the shape, both with and without already having an end of an arrow selected, I only see options for the lower square, which is a sub-component of the class diagram, so the anchor's don't show up on the bottom.
When I mouse over the top/title section of the class block I see 3 anchor points on all sides. As of yet I have no way of using any of these anchor points except the three on the top
Highlighting top section ("Class A") to show 3 connector anchor points on all sides


Any help or suggestions here would be great, thanks!