Hello,
The block of address is field type of “Address” that is showing the group of individual fields in one frame.
Either you convert the Country and State field from text to dropdown by extending vardefs.
and put these all the fields in separate row.
Or You need to extend Address field type. but this will apply to the whole application for address type. and you need to extend vardefs for all the modules that have address field.
Another not so good approach (But might solve somebody’s issues) will be to add custom drop-down fields under your module (Accounts in this case), add the list of options and finally add it to the edit view. You can use workflow or via logichooks to assign values to the standard address fields.