Pivot sub totals

Hello,

I’m testing the pivot table and it seems great! There is only one issue that i cannot solve.

Sometimes users don’t have the need to select any column. However in webix they get a blank page, because there is no sub-totals column.

Here is an example. On the left we have Webix and on the right the previous pivot table I was using:
http://s9.postimg.org/a6mfzyikf/compare_pivots.png

Is there any way to bypass this situation?