As long as you cannot use mechanical actions on indicators or controls with local variables, probably the solution is to change the value of those LEDs explicitly. For this, create a local variable (pop up menu -> Create -> Local variable) for each of your indicators and use them to change values after the test is done. You have to use a sequence or to force dataflow in order to be sure that those values are changing AFTER your test is done.
Hope I understood your problem
p.s: you can find some good examples of using booleans in lv folder\examples\general\controls\boolean.llb
