Non-inventory to inventory

We have been working with non-inventory items and items without tracebility (serial numbers).

Now we are obliged to keep inventory with s/n tracking for those items, however, Business Central does not allow to change ‘non-inventory’ to ‘inventory’ and does not allow to change the tracebility options.

(because there are already item ledger entries). Is there a trick or a way to overrule this ? It is almost impossible to create all new items…

Has anyone experience with this issue ?