Feature request: Gas usage in Stats tab

[Willem Ferguson]

Is there any way to show the gas usage separately for each cylinder 
during a dive? (i.e. if there are >1 cylinders). There are two reasons 
for this request:
1) This information is extremely pertinent after a multi-cylinder dive.
2) This single step will bring the manual dive entry mode extremely 
close to a dive planning mode. If one starts up subsurface without 
loading a logbook and then manually enters dives with dates and times 
that are appropriately spaced, one can do quite a bit of dive planning. 
The graphical interface is largely the killer that makes this very 
attractive. Gas usage is one of the key pieces of information gleaned 
from planning, therefore the request for per-cylinder gas usage.
I am not implying this should be for V4.0
Kind regards,
willemf