Adobe flash security setting panel error

Issue is the following page no longer works as of today flash security setting https://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager04.html so went to instead https://www.adobe.com/support/documentation/en/flashplayer/help/settings_manager04.html however this does not function properly either, when I select the edit location and folder or files it closes and can't therefore set the setting. We use flash for a important application and users are currently affected as they can't get on as it doesn't work and can't get past this issue. Urgent issue.