It's possible create a aculmulative column?

Hello, Marcos,
Thank you for writing to us.
We would like to confirm that it is possible to create an accumulative column in Flexmonster. We have a Running Totals aggregation capable of that. Please have a look at the following example: https://jsfiddle.net/flexmonster/eo5wsxhu/. There you can see Total Sum of Price and Running Totals of Price, where Running Totals of Price is an accumulative column. In the JavaScript section on the left, you can check how such configuration is set in the code.
Also, it is possible to change aggregations with the help of UI. For example, there is a Total Sum of Discount column. Right-click on its values, select Aggregation and apply any of the aggregations from the list.
Please inform me if it helps.
Regards,
Tanya