Available variables: show the field label

hello :)

thanks a lot for this module.
i wouldnt have been able to make use of the views pdf module without this module :)
i have to make a very complicated pdf (for my level) with many exceptions and i have 16 fields of global php.
now that i am at the last one, for me it is confusing to know which of the globals that i have already is the one that i want... so i thought that it must not be much work for you that, besides to write "Gobal PHP", you could put the title of the field... :)

i put some of my avaible variables for trying to make myself to explain better.

Available variables

* $view: The view object.
* $handler: The handler object.
* $static: A variable that can be used to store reusable data per row.
* $row: Contains the normalized record with consistent field name (e.g. $row->title).
* $row->nid: Nodo: Nid
* $row->name: Taxonomía: Término
* $row->type: Nodo: Tipo
* $row->title: Nodo: Título
* $row->field_subtitulo_value: Contenido: Subtítulo (field_subtitulo)
* $row->field_autor_value: Contenido: Autor (field_autor)
* $row->body: Nodo: Cuerpo
* $row->field_ano_value: Contenido: Año (field_ano)
* $row->field_mes_value: Contenido: Mes (field_mes)
* $row->field_dia_value: Contenido: Día (field_dia)
* $row->name_1: Taxonomía: Nombre del vocabulario
* $row->php: Global: PHP //here is where i mean that it would be nice to get the name
* $row->php_1: Global: PHP //here is where i mean that it would be nice to get the name
* $row->php_6: Global: PHP //here is where i mean that it would be nice to get the name
* $row->php_7: Global: PHP //here is where i mean that it would be nice to get the name
* $row->php_8: Global: PHP //here is where i mean that it would be nice to get the name

i have also a question about the relation of this module and the pdf view.
in the view pdf module, if you get a normal view field empty and it is checked as hide if empty, the module doesnt create a cell for it.
but with your fields, even if i checked and they are empty, they create a cell.
any tip?
i ask to report in the views pdf module since this makes more laborious to work with both modules.

and... for not opening other issue... the last question :)

i only use the "Output code" field. i undertand the "Setup code" and "Click sort code". but i dont get the difference between the "Value code" and the "Output code". is only for organization or it has another intention?

thanks thanks a lot :)
views is different for me since i started with vbo and this!