Map Element: Cannot display 'marker caption' for a list of geographic addresses

Hi, I want to show a ‘title window’ for each marker in the basic map element but I’m running into problems.

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When I set the ‘type of marker’ to ‘course’ (one of my data types), I am prompted to add an option for the ‘address field’. However, I am unable to add my desired field which is a ‘list of geographic addresses’.

I’ve done some experimenting and figured out that it’s not able to be used as it is a list . Does anyone know a workaround for this or any plugins that can do it? I really need it to use a list of addresses for each ‘thing’.

Thank you for any help!!!