I've got an Adobe form I'm working on. It is intended to document changes to system access (permission changes in AD, access to various financial applications, etc.). It presents a list of systems available, and next to each one are three radio buttons named Add, Change, or Remove. I want these radio buttons to be grayed out or invisible or otherwise inaccessible unless a checkbox next to the system name is checked.
So in short: When checkbox is checked, radio buttons can be selected. When unchecked, they are inaccessible.