So i need to create a condition that allows me to show specific meta for a user list.
Condition [userlist] = id doesnt work.
Depends on the trigger you're using. If you're using onBeforeDisplayUsersList then you can use [var6], which is the listid. You can see the rest of the variables for this trigger as follows.
Code:
$_PLUGINS->trigger( 'onBeforeDisplayUsersList', array( &$row, &$users, &$columns, &$allFields, &$lists, $listid, &$search, &$option_itemid, 1 ) );