Is there a search option to find all use of a button in block view?

I would like to replace a button with a canvas as a control tool in my app (so that I can draw on it instead of displaying an image).
Before I delete the button, I would like to make sure that I found all places where I use it (I am turning the "enabled" property on and off at certain stages of the app).

Is there some kind of a search facility that shows me the blocks related to the button?

When I click on "delete", I do get a message to be careful, because all related blocks will be deleted. My question is about a way to find these blocks (apart from of course looking through all the code).

Open the blocks editor
Click on some white space
Press CTRL-F
Type your block name or action (e.g. Button1 or Enabled)
This should then highlight all blocks with the search term

If you window your screen, and make it @ 1024 pixels wide, you should also see an indicator bar on the right showing the vertical position of each search response.

Perfect, thank you!

That last bit not working for me now (indicator bar)