Deploying Terminal Server Agent - shared secret

[NorthernNetGuy]

I'm looking at mass deploying the terminal server agent to lots of shared computers, and the only problem i'm having trouble tackling is the shared secret.

Has anyone mass deployed the terminal server agent with the shared secret included? I don't see an option in the customization MSI to include this. How have other people solved this problem? Manually entering in the secret to so many computers, and any new computer, isn't very feasible.

Thanks!