Menu module position problem

Hi
I have a problem about adding new module positions in gkextramenu in template The world news 2, joomla 2.5.

There are 10 positions (menu 1 - menu 10) which are not enough for the site. So I added 50 more in order to show the last k2 items under each menu item (every menu item is a tag from k2). When I try to assign the menu item with the "mod_news_pro_gk4", the module position automatically turns to positions 51 - 60, which are the final 10 positions I added., Any idea how to fix this?

Please make sure that positions have unique names, maybe this is causing this problem.