When I found WACUP I thought my prayers were answered. But shortly after install I found that there was no "Enqueue in WACUP" right click context menu. I figured that I didn't enable something so I started checking. After too much research I found that it's purposely missing and that there is no timeline for its return or even if it will return. I have an extensive CD collection, all ripped to flac. Often, as I'm listening, I will just browse the files and when I see something that tickles me I add it to the cue. Now that's not possible.
I realize that there is a workaround but it is not for me.
I really applaud the effort to make a modern Winamp, especially when sooo much of the market has moved to streaming on phones. And maybe someday I'll try again but right now it's not for me.