RouterOS 7.7 User SSH Public Key Limits

RouterOS Beginner Basics
1

I am successfully connecting as user “somone” with SSH public key previously uploaded and attached to “someone” login.
I want to access the same router as the same user from another host but using a public key specific to the second host.
My questions are:

  1. Does RouterOS support multiple public keys per user account?
  2. If yes, what is the upper limit to public keys per user account?

Thank you for your kind consideration.