Hi @timwindsor , thank you for purchasing, please follow the steps for the Pro version.
1- Download the Pro zip file from the codecanyon.net account, download section (a zip file).
2- De-activate the free version, or you can also delete it, deleting or de-activating will not delete any data or configuration, everything you have saved previously will appear in the pro version.
3- Upload the Pro version zip file which you have downloaded in step 1, through wp-admin > Plugins > Add New > Upload Plugin, and install now button.
4- Activate the Pro version, please make sure to de-activate the free version before you activate the Pro version.
For more questions please email us at [email protected]
Thank you