Is Visible hook

Use this hook to add the custom menu item conditionally to the menu.

Example:

function boolean session.txprc5500m000.is.visible()
{
|* Use this hook to remove the menu item from the 
|* menu. You can do that based on conditions. To 
|* remove it, let the function return the value 
|* false.
        return(own.pricing.implemented())
        |* This function is available in the Functions hook
}