Found it! It means also using the Canvas plugin too and making sure when you're building the game, to set the Browser setting to Canvas+ in both Default and whatever platform you're using.
https://forums.cocoon.io/t/cocoonads-pl ... ct2/1814/8
I think what they're saying is if you put an Event saying Is Canvas+ with no action and making sure that if you have one or more In app plugin Cocoon stuff that you put them as sub-events as at least one is Canvas+. You can have them be sub events to multiple is Canvas + of course.
Like one is Canvas + has in app stuff and on another line another is Canvas+ has in app stuff as sub event too.