Sorry if this has been answered already, but is there a way for a widget to automatically trigger on mouseover?
This thread has some examples of how to make things happen on mouseover/hover.
It also has an important caution about how mouseover triggers can't work the same way on mobile and touchscreen devices since they don't have a mouse pointer. It's an extra thing to think about if you'd like your project to be playable on those platforms (and if the mouseover event isn't just a optional detail that won't be missed if it doesn't work).