We should be able to create optional security in terms of file opening, file edit and file save/print fo all In Design Files. Permissions should be able to be modified from remote location, if for example a former employee with previous permissions copies file and takes proprietary template. This should be for desk top and remote server accessed files. Especially Server hosted files. I cannot believe this is not possible. Similar to PDF Files which are password protected. In Design files should have same security feature set as PDFs. This is critical and urgent.