Hello,
If you want specifically for a reason or another a h3 tag, then you have to create an override view.
For this you have the tutorial linked in my previous answer, now of course we can guide you to process yourself this override view but it will required more works and knowledge.
Or you pass through our
Contact us
form in order to realize this custom.
For both case, you will need to be more precise in your needs, the purpose and the context.
This will allow us to provide more details about this custom and it cost, or more specific help.
Regards