Default Heading Font Size

How can I change the default font size for objects on slide master?
On Master slide I can change font families but I do not have an option to change the font SIZE for headings and body.

Hi,

For objects which inherit properties from place holders, you just need to change font size of placeholders in slide master. For other objects, please take a look at https://atomisystems.com/tutorials/ap7/reuse-object-settings-across-projects/

Regards,