Are you asking for another column?
Sometimes the transfer pauses for a few seconds and then resumes. This is specially true for trickle slots. In such cases the '-' in the waiting column changes to a wait counter after about 15 seconds, and reverts to the '-' when the next block of data comes in. The space therefore is already in use, not wasted as one might expect.
I really don't think a request for another column will go down very well with the devs
We need to be a bit more creative, maybe like a +/- sign before the time to differentiate between waiting and transferring. Bit of a problem with the pauses, though: when more data comes in, should the transfer time start from zero, or should it continue from where it left off?