Show concatenated fields on modal form

Hi
I see how fileds can be concatenated on the data table like here but how can I show the same data on the editor modal form? I just need to display data so stringing fields together on the modal form is fine as no update is made later to the db but that data needs to be the same on the data table and the editor modal form. Is it possible to use an index instead of the field name when building the editor object, eg?