Directly supported by RouterOS would be better.
If I had time (this winter), I could make a script that does the RExport and RImport (excuse the pun...).
I've already studied in another topic how to ACTUALLY export everything to RouterBOARD, minus the user passwords.
If you skip backing up the entire files folder (which is obviously out of place), it might be feasible.
certificates public/private
ssh host key public/private
software license
export config (with sensitive)
export users (without password for obvious reasons)
skins [not directly considered on the link]
list of installed packages [not considered on the link]
User-Manager database
The Dude database
About username and passwords...
If is used internal user-manager for RouterOS user accounting,
can be exported all users with passwords included, (except admin that must exist as root user)...