Step 1

The timeline bar component and background is pre-made. So to change them you have to use the components section in the right pane.

Step 2

When you select the entire component you can change the amount of periods. To change the dates in the balls, you'll need to go a few layers deeper. You can do this by double-clicking until you find the component or search for it in the layers pane.

Step 3

The dates can be changed here and set to the right dates. Make sure you have the right amount of days in the month you're about to add.

Step 4

The same goes for the moment you have a call, you'll have to find the layer and select the date you want to have the call on.

Step 5