Change the order of the menu in admin

Hi all,
I tried to research this issue, but I found nothing as the only thing I get are suggestions on how to change the order of the pages on the front site, while my issue is on how to change the orders of the menu in the admin part of the site.

I have installed the “NextGEN Gallery” and it put a menu list on the admin sidebar; unfortunately it is at the end of the sidebar and I want to move on an higher position.

Since I am not sure I am explaining this issue in a right way, here it is a screenshot of what I am trying to accomplish:
https://www.marcodifresco.com/wp-content/uploads/2010/04/wordpress.png

Any idea how can I achieve it?

Thank in advance.