Performers and Swimming lanes
In my opinion the name of the swimming lane is the business role for the activities in that Swimming lane. Why do we need the concept of a performer for an activity? Isn't this the same as the swimminglane by default?
In bigger procesmodel in publishing mode you sometimes have to pan to the right of the model, so you don't see the name of the swimming lane anymore. It would be very convenient if the name of the swimming lane (performer) could appear when you hover over (or click on) the activity