sugarcrm filter on relative field

Question

How can i add filter on related field . like I have user type related field on which I have want to show only user related user with some role . how is this possible ? 
 
 i tried through this 
 https://sugarclub.sugarcrm.com/dev-club/f/questions-answers/1209/how-to-add-an-initial-filter-to-studio-created-relate-field-drawers 
 
 bt not working

neeraj verma · Answer

You can extend the vardef file to add a "filter_definition". For example, in the field custom/Extension/modules//Ext/Vardefs/sugarfield_.php , you can add something like: $dictionary [ ' < module > ' ][ 'fields' ][ ' < field_name > ' ][ 'filter_definition' ] = [ [ 'aclroles.name' => ' < role_name > ' ] ] ; Then do a quick repair and rebuild - and by default, it will auto-filter based on the definition above - but this doesn't enforce the filter, users are free to remove the filter and set any record they want, but the default search will filter by the role you specify.

neeraj verma · Answer

See if this helps 
 support.sugarcrm.com/.../