Question on Creat Nameserver when deploying website

Today I just started to deploy website and come to the page of “Create Nameserver”, I found that two nameservers are required.
Unfortunately this is very troublesome, my hoster Lightnode doesn’t use nameserver, my server only has one IP address.
I contacted my domain provider and succesfully created two nameservers there, and it asks me to let my hoster add cname records for the two nameservers I created.
Is it possible to leave Nameserver blank and only fill in IP address?