Changing the Street Address sublabel on only 1 field ...

Hi all,

On my form I have 2 Address fields, one for Retail Address and the other for a Postal Address.

Is there a way to set the Street Address sublabel for only one of those address fields? For example set the Street Address sublabel in the Postal Address field to say simply "Address" or possibly "PO Box" but without changing that same label in the Retail Address field.

I can see how to use the gform_address_street filter however that targets all Address field types in the one form.

Thanks.