Hey @Danielle_Kelley!
I am the Product Manager for SSO Duo and would love to learn a bit more about the customization options you have in mind!
Right now, the answer is no, there is not much customization available outside of adding applications and bookmarks. However, we are looking to add more customizability to Duo Central in the upcoming year.
I’ve sent you a DM to set up some time to chat!
– Colin