I am trying to manually add a script to the Script Execution Order (SEO) screen. The comments I've seen are to "drag and drop. If you look at the screenshot, I've selected the script, am dragging on to the SEO, and it shows a blocked symbol. The only alternative is to use the horrible scrolling menu (that doesn't even support a scroll wheel). Any suggestions, am I doing it wrong, or is this a new bug? I'm on 2019.4.8f1 for reference.