You can test this out by previewing your movie, but you'll have a little problem--once you start dragging the object, you won't be able to shake it free from your mouse. You're stuck with it, until you reload the movie completely. In order to fix this, we need to add a new command that will stop the mouse dragging and "drop" the object wherever we want to let go of it.
To start with, insert a new on command, below the first one. I've switched back to Normal mode for the moment just to make it easier to click in the correct areas to make the code add on in sequence. For this on command, we'll need to select the Release option, so that the action we specify takes place when the mouse button is released.