It would be VERY USEFUL to see captions to each flow action! Allow the users to label flow branches so that they don't get confused or lose track of what they have done.
Instead of simply seeing identical and confusing "Create or Update Module Entry" for every action in every branch of a flow, you should see for example "Create or Update Module Entry: Contacts, UserID" or something visible on the diagram.
Anything at all so that you could look at the flow diagram and know what was being done. This becomes more important with more steps and branches!
Adding the ability for users to put small text entries (labels or notes) on the flow diagram would also help. Just like commenting computer code, these notes would really help other users or developers understand what the flow was attempting! Would be VERY useful for troubleshooting.
Please, please add these.