How to load / use Custom Fields created by ACF in MB Views

Hi there, I am trying to code a 'View' using MB Views, which will load in custom fields that are created by the ACF extension (I understand that I can use Metabox for this, but due to technicalities on this project I need to use ACF for my custom fields).
However, the fields I have setup using ACF, do not show when I click 'Insert Field' in the 'Edit View' screen.
My custom field ID is 'office_location', so I tried loading it in by typing '{{ post.office_address }}' however if this does not work (nothing gets returned, but I know this has been filled in).

So, is this possible? And if so, how is it done please? Please can you provide me with the code I would need to input / specific instructions (and not just a link to your documentation as I have looked and searched through them and found nothing).

Thanks in advance for your help,

Keith