I think you might have gotten lucky with the upload two days ago by Nathan Ruth to the AppStore: React Tooltip
Hi Tim,
Thanks for the response! I tried this shiny new widget, the React Tooltip, and it turns out that calendar widgets cannot be contained within the React Tooltip:/ maybe in a future release...fingers crossed!
Any other ideas for work arounds?
Alex
This post helped me a lot:
I noticed that when hoovering over the title of an event it shows already a tooltip. I just created a seperate attribute for this title and created a variable with the instructions in the link. That way I just created a new (slightly formatted) sting and made it appear in the tooltip.