It would be nice if the help documentation for tools would have reasons that the tool might be grayed out. The documentation says right click and select "Whatever", but doesn't say what to do if "Whatever" is grayed out. What might be the cause of it being grayed out? You program it to be grayed out, why not tell us what those triggers are? It would sure save me a lot of time searching the forums.
These reasons could be listed like the Related Topics section at the bottom.
