On the upper left are a group of icons with checkboxes. These allow you to select which type of contents you wish to act on: for example, all animations, or all notecards, or objects and textures. Select or deselect as applicable.
You can use the All button to select all types, or the Clear button to deselect all.
Below this, you use checkboxes to indicate which permissions to apply.
Once done, click Ok to apply your choices - or Cancel.