epl_property_supports allows you to adjust the post type supports options

The epl_property_supports filter allows you to adjust what the property post type supports. See WordPress  post_type_supports.

The defaults are:

'supports' => 'title', 'editor', 'author', 'thumbnail', 'excerpt' , 'comments' ) ),

To enable post revisions create a function and add to your themes functions file.

function my_epl_property_supports() {
	$supports = array(
		'title',
		'editor',
		'author',
		'thumbnail',
	 	'excerpt',
		'comments',
 		'revisions'
	);
	return $supports;
}
add_filter( 'epl_property_supports' , 'my_epl_property_supports' );

Each of the post types have the same filters: 

• epl_land_supports 
• epl_rental_supports 
• epl_rural_supports 
• epl_business_supports 
• epl_commercial_supports 
• epl_commercial_land_supports