A.
Yes, you can change the properties of multiple objects of the same type at once by selecting them together and using the [Property Window].
To open the Window Property, go to [View] - [Property] from the top menu. It will appear as a Dock Window on the right.
To keep it fixed, click the pushpin icon next to the [X] button, as shown below.
Simply drag to select multiple objects of the same type, then edit their properties in the Property Window — changes will be applied to all selected objects.
This is especially useful for batch-editing Button Images, Text Colors, and other visual attributes.