Is there a way to set up flags

[ToddT]

I would like to set a flag inside of a case structure, which will be used in deciding if the case is true, ex.
flag IsSet=false
if (SomeThing is true && IsSet is false)
enter case
set IsSet to true
exit

[altenbach]

Just use a boolean for your flag, then you can use boolean logic operations. Everything you need is available in the boolean palette.

[ToddT]

I have done that, but in order to do this you will end up with a boolean control on the front panel. I desire a method in which the front panel is unaltered. I appreciate your help, though.

[altenbach]

You can use boolean diagram constants.