I love this app, its easy and lexible! So great!
One point: If I attach more than one arrow to a box, I cant see what the ending points (arrow forms) are. So, if I have for example one Line with arrow and anothe without arrow attached to a box, I dont see, which one is ending with the arrow there.
Íd suggest to let end arrows with different Endings/arrow-heads at different positions at the box to be able to see immediately into which direction the flow goes. (Also different Arrow endings and none-arrows should be at different positions at the box to see the connections). That way one could also easyly have two different flows between the same sides of two elements, which would be perfect!
Unless this is emplemented, using Arrows with different Arrow-heads doesnt bring the clarity, it should.
And, by the way: It would be nice, if we could bend the curves by dragging them, to make the curves more round/wide or less, so we could easily enhance visibility. But thats more a "nice to have..."