Groups "Actions" Menu

Hello. I would like to remove these icons:

-add videos

-add files

-add sound

-share

From Groups "Actions" menu .

Thank you for help.

From what I have tested.. If you set the photos, videos, and files permissions to Admin Only when you create the group, then others who join cannot see those options you stated in the Actions Block.. However, this does nothing for the "Share" button.. You being a "Admin" of the site will always see it.

Thanks