Use both dsa and rsa SSH host keys

I know where to set the file to use a given SSH host key in Serv-U (15.1) which can contain one or the other style key.

I'd like to be able to present both the DSA and RSA type host keys to our customers, since the enviroment we migrated from alowed both key types to be available to the customers depending on their preferences.

Putting both host keys into a single file doesn't work since Serv-U only presents the first key.