for example to get one column which will present list of products for each store:
| Walmart | iphone 6, xiaomi 4x, samsung 8 |
| Amazon | playstation 4, xbox one, Gopro hero |
Thank you for writing to us!
When using string hierarchies in calculated values, you can use only count aggregation, not the string values.
As a possible workaround, you can create such concatenated strings on your side, pass these modified strings to Flexmonster and display them in the flat grid.
Should you have any other questions – please let me know.