List stores in a centre

Hmm….what you could to is to create a custom field, set it to Show as a tab and use a “link” where you would paste the address of other listing.
Otherwise it will require custom modifications.

Yes, going there you will be able to create/manage custom fields.

Hmm. a photo tab cannot be added without custom modification….you can add photos in the details tab, by adding a custom field (File Upload) and clicking Yes on the “Show on detail page” dropdown

About the accommodation system…I think something is boiling in the big caldron ….so maybe in the future it will be released. I have to ask to Paolo or Stiofan to confirm that.

for example:

add_filter('geodir_detail_page_tab_list_extend', 'geodir_detail_page_tab_list_extend') ;
    	
    	function geodir_detail_page_tab_list_extend3($tab_array)
    	{
    	 	$tab_array3['custom_tab'] = array( 
    											'heading_text' =>  __('<b>CUSTOM TAB</b>',GEODIRECTORY_TEXTDOMAIN),
    											'is_active_tab' => false,
    											'is_display' =>  apply_filters('geodir_detail_page_tab_is_display', true, 'custom_tab'),
    											'tab_content' => ''
    										);
    		return $tab_array ;
    	}
    	
    	add_action('geodir_after_tab_content' ,'geodir_my_new_tab_content');
    	function geodir_my_new_tab_content($tab_index)
    	{
    	global $post;
    	
    	global $wp_query;
    	
    	$postid = $wp_query->post->ID;
    	
    	
    	
    	
    		if($tab_index =='CUSTOM')
    		{
    		        $CUSTOM_FIELD= geodir_get_post_meta($postid,'geodir_customfield',true); 
    
                echo "<b>custom field:</b> € ".$CUSTOM_FIELD;
                
            
    		}
    	
    		} 

The tab setting should be there:
http://docs.wpgeodirectory.com/core-place-settings/#tab

Just chipping in with a different solution: use the favorite system, and rename it to MyStore or something. Then a listing owner can add all his stores as “favourite” and add a link to that as a custom field for example.
Then the only thing they need to do is to favorite their stores, and they will be added.