When starting an activity, you can check off activities as started. To do this, simply check the box in the Started column with a mouse click. You can mark activities in the schedule on activity level, on package and project level under Activities as well as your own activities even in your personal schedule in the Dashboard as started!

Attention! You need write permissions to start! By starting an activity, the actual start date of this changes to the day of the change and the activity status changes to In progress!