Select the object on the slide. You can also select multiple objects by holding down the Shift key (Windows) or the Control key (Mac).
How to add reflection to objects in Adobe Captivate
You can add reflection to all objects and placeholders, except the following:
Answer items in question slides
In the Property Inspector, click Reflection in the Shadow & Reflection accordion. The reflection is added to the object with default settings. If you have added a reflection to any object before, those reflection settings are applied by default.
To modify the reflection, click one of the preset options.
To add reflection to multiple objects, click and choose one of the options.