If you enabled Cameyo's custom file dialog, you can provision pre-defined template files that will be accessible for read only for all user sessions from your server.

For this, you just need to create folder C:\Users\Public\GlobalDocs and place the files and directories. Contact Cameyo's support and ask to enable the GlobalDocs feature. A new section named "Templates" will then be added to your file dialogs, accessible to all users: