These docs are for an old release. Info on upgrading to v4

groupByDateAndResource scheduler 1.1

Determines if multi-day agenda or basic views should display resource columns. If so, renders date headings above resource headings.

Boolean, default: false

Beware this will affect all multi-day basic/agenda views, which might look bad for views that have many days. If you’d like to target a specific view, use View-Specific Options.

Setting this value to true will override groupByResource.

Screenshot:

dates above resources