DHTMLX Grid mixto

someone if in the grid you can have records with groups and without groups, that is, a mixed grid that is grouped and others not.
Someone knows if this possibility exists in the dhtmlx grid

The grid has the property of grupBy (), but so that it does not group all the records and others leave them ungrouped. Does anyone know if there is a combination between this ??

Unfortunately such feature is not available in the dhtmlxgrid.