How to add elements from Gantt
Hover over an element name, click the three dots, and click “Add New Activity” or “Add New Milestone”
Once the Canvas pop-up opens. Click anywhere on it to place the activity and close to go back to the Gantt view
While the Canvas is open, multiple activities, relationships and interim milestones can be added.
Close the Canvas to switch back to Gantt view and see the newly added activities.