is there a way to define the multiplicities of an association using mouse gestures?
For me, that would be a very important feature because multiplicities do really matter.
Perhaps it would be a nice idea to have the ability to draw an “one” or an “N” on one end of the associations. Another solution were showing four boxes after one drawed an association: lower bound left, upper bound left, lower bound right and upper bound right. In this boxes one could draw a “0” an “1” or a “N”.