Actually, I don’t indicate that it was ever tested in multi-site. I’ve had a couple of people tell me it works there (so in previous versions I’ve mentioned that), but I’ve never used it/tested it myself in that environment, and I don’t advertise that it WILL work in multi-site. All it is, however, is a custom post type, and it’s set to allow Administrators only to create and edit the instructions. (There’s no allowance – yet – for super-admins) So unless there’s another plugin that’s interfering (perhaps with the jQuery toggle) I can’t imagine why it wouldn’t work in a multi-site environment.
But again, it’s never been tested in that environment (mainly because no one has ever asked for it to be – and since I never use multi-site, I don’t have a setup where I *can* test it) but I can give it a shot for the next release. All I can say is, for now, the typical advice: try shutting off all the other plugins to see if there’s a conflict; swap to default theme to see if it’s something in the theme code/functions.php file, etc.
In any case, with so little to go on in your comment, I really couldn’t troubleshoot – “it doesn’t work” doesn’t tell me anything about what’s going on, so if you can provide some more information, that would be helpful.