Manually creating software inventory + licenses

Evening,

After a discussion management decided not to use software discovery, but instead would like us to manually track purchased software licences, and assign them to computers under CI.

So far, I'm not seeing anything OOTB to make that happen.

What I'm wondering (before I start creating objects) is this :

Do we just create a new form under CI named Software to link with computers?

Or is there something OOTB we are missing?

Running Ivanti Service Manger 2018

Thanks!