Hello Julian,
Currently, we don't have the exact support for that, but there is a couple of existing features that may fit your use-case.
Grouping by Resource
You can group multiple tasks under a single resource, and collapse the group into a single row. The collapsed row, however, hides the individual tasks, so you lose visibility into what's scheduled.
Demo: https://docs.svar.dev/svelte/gantt/samples/#/resources/willow
Make sure to enable "Group by resource" in the demo.
Split Tasks
A task can be split into multiple segments. Each segment can be given its own name. But these are still one task under the hood, not multiple independent tasks sharing a row.
Demo: https://docs.svar.dev/svelte/gantt/samples/#/split-tasks/willow
Planned: Assigned Tasks in Resource Load
A feature which is on our road map that's related is the display of assigned tasks in the resource load chart. Assigned tasks will be shown under each resource, though they still render as separate rows.
