Adding to Campaign from Play Now page

Hey there,
I have search through past posts and couldn’t find anything.
So as people have said in the past, like a few years in the past, the navigation and interface is not newbie friendly.
Luckily there are a bunch of nerds willing to help other nerds out. This community is amazing.
My question is, why can you not add new sounds to your Campaign from the Play Now page? I can create and add sounds to a Campaign, but once in the play now window, you can’t. There is search functionality, so if you can discover new sounds in this page while also having access to your created Campaign, why can you not just add the sounds there?
The fact that I have to remember the sound and then go find it in the Campaigns page is time consuming and makes me definitely not want to do it. This is mostly a concern if your players do some random shtuff you didn’t plan for and want to change the sound quickly. I get that you can do that, but what if I like it? I have to put in work to actually save it for later.
Unless I am being stupid and there is a solution.
Okay, thanks bye!!!