Remove Products doesn't work well on short pipes/belts

Remove Products seems to stay selected until no more products are flowing into/onto the pipe/belt. However, this doesn't seem to work well for short pipes/belts: a truck will come, pick up one or two fluids/items and leave; then Remove Products will turn off; and after that, a connector will release more fluids/items. I have been sitting here for five minutes repeatedly clicking Remove Products just to try and get all the Lab Equipment II off a short belt.

A Quick Removal for Unity option would be neat as well