I try to custom the main view of the house and the category listing. It is "House Page Settings". There is a constant: _REALESTATE_MANAGER_ADMIN_ALL_HOUSES_LAYOUT. The dropdown menu of that constant sees the custom.php file that I created in the view folder. But it doesn't work. If I choose custom.php and if I modify that file [site]com_REMviewsview_housetemplcustom.php(default.php).