After the Masterplan upload, in the pre-configuration phase, an activity can be updated with start date, duration, work progress and work resume date. At any point in time we can rename an activity, change the User/Company in charge and even delete it if it's not necessary.
Double click on the activity bar to access the details.
Click on Edit button (pencil icon)
Update the activity (rename activity, edit start date, duration, remaining early start date and work completed (progress))
Click the Tick button to confirm.
Fig. Editing an activity with Zero Progress
Fig. Editing an activity with progress
Instead of editing the activity from the detailed view, you can simply click and drag the whole activity or the end date of the activity. Watch the video below to learn how to do so: