SetHelpIdx ([lNew]) --> true/false
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Functions:
~~~~~~~~~~
Serves as a switch, if set to true (if returns true), there is enabled
to change a information displayed by HelpKeys(), if set to false the
change is disabled.

Parameter description:
~~~~~~~~~~~~~~~~~~~~~~
lNew: new value to set the switch

Return value:
~~~~~~~~~~~~~
true/false

Example:
~~~~~~~~
    ? SetHelpIdx()        //the value of the switch
    SetHelpIdx(true)      //set the switch to true
    ? SetHelpIdx()        //returns true

Source code is in file  Object3.prg