How to use Public Key from remote FTP Server Adminstrator

Hi,
I received a public PGP key from FTP administrator for PGP encryption. I am new to set up WinSCP and would like to encrypt my files via their public key then send them my files. Where can I import the public pgp key provided by the remote FTP administrator into WinSCP? How can I set up the script to encrypt my files via their public pgp key?
Thanks,

WinSCP cannot encrypt files with PGP.

Hi Team,

I request WinSCP should also have PGP encryption feature.
So that we don't have to use other components but only WinSCP.

Thanks.