Collection
A collection is a task used to define permanent 'collections' of features to be used as an indata/calculation base in other tasks. When several tasks (e.g., ground surface tasks of the existing situation and different subsurface tasks) are used as indata to other tasks, it is smart to combine these in a Collection task. The Collection can be used as an indata/calculation base in multiple tasks. If there are changes in the Indata tasks of the Collection (e.g., there has been a renewed ground surface due to new measurements,) the Collection task is automatically updated and you need only recalculate the proceeding tasks that have the Collection task as indata.
Find it here:
Select template (optional).
From the task panel, enter a suitable task name.
Select a location in the process tree, or type a new location. If a summary task was selected before you clicked the tool, it will pick up this location. If not, the default will be the root task.
In the Selection pane, click Select Feature(s), and use the standard way of selecting the task/features you want to put in the Collection.