Hi cnorborg,
Thanks for the feedback. I've reproduced the same behavior with 7.3.2, so at least it's not regression problem.
I agree it's something we could take a look in the next release.
Regarding the ability to hide reports, policies etc. -- all the content that is built in is available on thwack. (Alternatively, you can export to file.) If you don't need e.g. DISA STIG, feel free to delete them. Do it on the report level as NCM will ask whether you want to delete all associated policies and rules.
I encourage you to play with NCM 7.4 more and give us feedback -- it's always welcomed.
Regards,
Jiri