It would revolutionize my life to be able to add a hyperlink/whimsical link to flow chart shapes. I want to use boxes to represent high level components for a product - each of those components has their own process flow/document tied to it.
Similarly, I use shapes and images to represent database diagrams - I would love to link to that schema in another tool we use to map it.
I would really like to see this feature request incorporated into the product, it would create big value for me and my company. 
thanks!
EDIT: Just found this:
it’s not exactly what I want, but it solves the problem for me.
Yes I need this too because my flowchart is Big. Easy to use if this features helpful
Definitely need this to work Whimsical more into our product development flow.
Hey Matt, Jade here from the Whimsical team. 
Just wanted to let you know that we now offer rich text formatting within flowchart shapes, so you should be able to add links! 
Here’s how it might look:
Hopefully that works for your product development flow!