How can I send the machine I created to htb

Hello friends.
I created a very nice ctf machine and I want to send it to htb, where can I do that. I could not see anything in the panel
thanks for help

https://www.hackthebox.eu/home/machines/submit
and also have a look at this:
https://forum.hackthebox.eu/discussion/1467/machine-submission-checklist/p1

thanks