Dynamic display and calculations in BEX²

Hi experts,

Let's take the following example:

Is that possible to do the following?

If in colomn Total 1 i have values with no quantities, then no values have to be displayed in all the componantes of node sales of malt in tons?

And also, in that case, the amount of Total 1 malk produced have to be displayed in storage costs.

Thanks.

Amine