Similar to the "Set Variable" action, the "Add Item To Collection" action should allow multiple items to be added to a collection.
Currently, 1 item can be added to a collection at a time. If there are many items that need to be added, this creates a lot of actions. If they could be added in bulk, this would greatly reduce the visual footprint of our workflows, as well as the action count.
Thank you very much for posting your feedback for our review. At this time, we will not be adding this request to the near-term backlog, as we are focused on other highly requested features. However, we reevaluate requests every quarter and will reach out if priorities change. Please keep the feedback coming as it is critical for our longer-term planning.