In the POV Export options in LDView, there is a "Top include filename" and "Bottom include filename". If you enter any text in those fields, LDView will add #include statements at the top and/or bottom of the file to include the given file(s). The top include happens after all the LDX #declare statements, so you can redefine any of them you want inside your include. And all my color declarations are inclosed in #ifndef, so if you want to have your own custom color declarations, just use the same names LDView generates (for example, LDXColor1 for color number 1). The bottom one is the last line of the file. To be honest, I'm not entirely sure what it's good for, but I think Tim probably requested it.
As a side note, many of the export settings have tooltip help associated with them. So, for example, if you hover the mouse over the top include filename text field, it will describe what the field is used for.
As a side note, many of the export settings have tooltip help associated with them. So, for example, if you hover the mouse over the top include filename text field, it will describe what the field is used for.