How do I enable cookies on my iMac?

How do I enable cookies? The only choice I have is to check or uncheck Block all Cookies but nothing to enable cookies. When I go to manage websites, there is nothing there. I'm using 10.15.7 on my iMac

I did uncheck Block all Cookies but it didn't work. Instead, I did this: go to Safari/Settings for Websites/PopUp windows menu--choices are Block and Notify, Block , Allow. It's not obvious but there is a drop down window on this menu to do this. It was set to Block so I changed it to Allow. Unfortunately, every time I go to this menu, it defaults back to Block and Notify.

I was informed by my banking website that it was an issue with cookies which is why I asked about this. However, when I did Allow pop ups, I was able to access a new feature on the banking website. Thanks for all your help!

Yes. The person I was dealing with said this is a cookie issue which they forwarded to their tech support. I gave her the above information re pop ups.