Can a PDF contain multiple highlights/shapes, all pointing to the same comment? (Images included)

Note: Images included towards the end

I have an XFDF file (xml) that open on tops of a particular PDF and highlights some content on the PDF (basically draws a rectangle shape) as per the metadata given in the XFDF. Now each of these highlights / shapes have their own comment in the comments section (by default). 

Is there a way to create highlights/shapes without any comment in the comments section.

or

Is there a way to make multiple highlights/shapes point to one single comment.

Example below:
Actual Output

Expected Output: 

Please share if this is feasible.