When you store a hidden or read-only file in the HCP Anywhere folder on one of your registered computers and the file syncronizes to your other registered computers, the resulting copy is neither hidden nor read-only on your other registered computers.
Additionally, HCP Anywhere changes the read-only attribute on a file when that attribute prevents HCP Anywhere from updating a file. For example, you can have a synchronized file that is read-only on one of your computers and editable on another. When you make changes to the editable copy of the file, HCP Anywhere removes the read-only attribute from the other copy and updates that copy with your changes.