[Koha] How to limit number of copies?

Hello, In Koha it is possible to Add an instance or choose to "Add Multiple Copies" simultaneously to a record. So far so good. More..... I had a situation where an employee mistakenly typed 800,000 copies for a record. As a result, when Koha started its automatic Indexing routine, it consumed all of the server's memory and crashed system access. When I tried to delete the 800,000 copies in batch, the system crashed. It took slow deletion from 5,000 to 5,000 to reach 800,000. Considering the aforementioned case, would any colleague know if we can limit the quantity in the option "Add Multiple Copies"? Thanks, Victor