This week I saw a couple of questions about the sources that you can use for OS Provisioning in Ops Center.
"Is there any way that I can automate the importing of FLAR files for OSP, with a script or something like that?"
Yes. If you've set up a default software library through the UI, you can use the Ops Center CLI's osimage mode to perform imports. Take a look here for more information.
"Is Unified Archive (UAR) supported through Ops Center?"
Not yet. However, we know that it's a desirable feature for a lot of users, and we're working on it.