How to delete Orphan certs and keys

we have around 1000 orphan certs and keys to delete. I understood that if I used "delete system crypto", it will left system file as it in bigconf.config file so better to use GUI. but deleting these mass amount of certs/keys using GUI is not quite practical.

Is there any other way I can delete those certs/keys which can clean up the files in conf file too?

Thanks,