I have a power chart which takes a considerable time to load tags when selected. I would like to change the cursor to a Wait cursor while waiting for a tag to load. On the pens property change I can change my cursor depending on the values of current and previous pens. This is fine for when the tag is finally loaded. But how can I change my cursor to a wait cursor when the “Add Selected Tags” button is hit? What event or property should I be keying off of??