Component List
If you want to change any particular property of the component > first select the component which you want to change from the Component List.
Ex: select either the bar, line or bubble component accordingly.

You can change size of the bubble by selecting the bubble component > click on component properties > Size > click on the pin icon.

Next, select example CostAmount as the size of the bubble to be shown. You will see the bubble sizes accordingly increasing/decreasing as per the profit in each branch.

Another ex: If you want to change the stroke width in the line chart > select the line chart as shown below.

Next, click on Component Properties > Stroke Width > drag and change the width.

Similarly you can change the other properties of these components according to your need.