Use for Duo Device Manager only

Hello. I'm wondering if anyone has tried using this module to surface the Duo Device Manager iframe only. My site uses simplesamlphp and simplesamlphp_auth module to authenticate my users with Oracle Identity Manager as our IDP. The Oracle Identity Manager already requires the two factor authentication with Duo. So my users are already authenticated and Duo-authenticated. I just want to put the device manager iframe on a page so that they can modify their devices, but if I just install this module and turn it on, I'm guessing they'll be prompted a second time for a Duo push after authenticating.

Has anyone tried this? Thanks in advance for any advice.