If you scroll down, more of them will load on the page.
I suggest you do a few hundred at a time [if you do more it may error]
Hello @Nejc Novak
Feel free to open a ticket with our support team. Our engineers can help with this since it is a big change!
Here are the various ways in which you can reach out to us - https://support.pipedrive.com/en/article/contacting-pipedrive-support.