Hi @patriciamakstudio,
Thank you for reaching out, we do appreciate your time.
Unfortunately, custom markers are a Pro feature and as a result, I will need to ask that you reach out to us directly on our website to discuss the options available. You can do so on our website by clicking on Support > Support Desk > Submit a support Ticket.
We are not allowed to offer any premium support via these forums as they are reserved for supporting the base version of the plugin, as per the www.ads-software.com guidelines.
Note: This thread will be marked as resolved as it is specific to our Pro add-on, and under the www.ads-software.com guidelines, no premium support is allowed via these forums.