making a push button Visible on anothe rclalback

Hi, I have a pushbutton that is initially set in the propery inspection in guide to be invisible. I then want to make it visible on the callback of another pushbutton. i have used:

set(handles.pushbutton6,'visible',on);

But this came up with an area.

Is this possible?

I am doing this so I can toggle between 2 graphs on an axes component.

thanks

[Jason]

OK it does work if I put 'on'.

[Daniel Shub]

You should really put that as an answer and then accept it.