Custom Cells and formula to show Volume

Hi. Thanks in advance for your help.

I'm using the standard Excel interface in Section 11, and was wondering if it was possible to get Selection Volume.

I can get it in the app by putting up a chart, but is it possible to have them all export as custom cells?

I saw an example on 
https://marketfeeder.co.uk/learn/triggers/labouchere/

but didn't understand how I can make it loop through the whole market and place it the same row (ie column M) or one of the always zero/reserved for future use cells.

Thanks again

Hi
Is it selection's volume percentage you are wanting i.e. selection variable "volume"?
It is there in column A under selection name  

Hi it's volume, but thanks for that I just realised you also gave me the answer lol. 

M4 =$E$3*(A5/100)
M7 =$E$3*(A8/100)
etc

ok, but you only need one custom cell address:

each selection is displayed in 3 rows, so row = 1 to 3

syntax for custom cell address: S[column]:[row]  

e.g.
address: S13:2
Value: market_volume*(volume/100)

will put your formula in 2nd row of each selection in column M