Bitwarden Client - Send, preserve file permissions

We at Plejd AB in Gothenburg are interested in getting the file permissions (chmod only) preserved when sending a password/credentials using the SEND feature. This is meant to ensure that a user can not accidentally overwrite their file-based credentials after saving it. Thus the feature must ensure that CHMOD permissions are applied after saving the file to disk. It would be cool to provide that as an option so that it provides an OPT-IN.
Many thanks in advance!
SM