There instances where I can tell that someone is interested in filling holes in his/her collection of a particular artist. I'm willing to let that person have a new dedicated slot but believe such a function is not yet installed in the base LimeWire code.

The "Add Slot" function would be on the context menu for list items in the upload window. That slot would exist solely for that IP and disappear after 5 minutes of inactivity.

I was using Clean LimeWire 2.5.3 and recently switched to AquaLime 2.5.5. So this function may appear independently of other builds.