options of info panel

I had no time to write anything for you, but honestly you don't need to do that way I think you want. You can apply timing function not bound to ExtendScript Toolkit. It's quite easy, I have idea how to do it. As to clicking on canvas I guess you're using notifiers? If so there must be used some certain tool that is recorded by ScriptListener. Which one is it in your case? Selecting tool is recordable for sure, so notifier can record user selected that desired and make ready for some click on canvas. Probably there are more tools which use can be detected without specifing which one it is. It's why recording choosen tool before clicking canvas is so important. What I know you can click on layer, that one from panel of layers what'll be seen by notifier, but with a canvas there may be problem. I wonder what tool you're talking about?