The accessibility of buttons can be controlled by using the Visible/Enabled options on the button properties screen.
- Enter the Edit Mode(tap Edit->Edit Mode), then tap and hold (right click) the button to be modified.
- Select Edit Button to bring up the General Properties tab.
- Unchecking the Visible box makes a button invisible in standard mode and automatically disables the button action.
- Check the Enabled box to activate a button. If unchecked the button will be deactivated.