Swim lane UI behaviour

Hi,

I'm working on a large model with many swimlanes. It would be good if the Modeler UI allowed me to hide swim lanes I wasn't using, much like the outlining behaviour in excel that allows you to expand or collapse rows. It would also be useful to be able to keep the swim lane labels visible so that I when I scroll to the right I can still see which lane is which. Again, this is like Freeze panes functionality in excel.

Justin