No key columns

Hi all

I'm currently using database views for my pages, since they starting to get slow because of too many records I trying to change them into PHPRunner views, so I made a new page with from a custom view but I'm not able to choose any key columns since none of them are appearing, so I tryied to make an other one this time I got key columns but only from the original table I choosed not the ones added to the view.
Does anybody know how I can solve that ?
The database is a MySQL with primary keys set (I can even see them on the Query page), and I'm working with PhpRunner 5.2 (Build 5482).