App Approved but new IAPs are 'awaiting review"

Hi all,
I was about to manually release an update when I realised that all (new) IAPs (auto-renewable) have not been reviewed and are still stuck in 'awaiting review'.
I did some searchign and found that that a binnary needs to be associated with any new IAPs to trigger a review but I cannot find any UI to do that. Screenshots I found online show a section that doesn't exist in my dashboard.
Anyone knows how it's done?
Thank you