Need Help with Keys Lock outputed to Nucleus Strings

Maybe I’m not setting it up right but basically I want to have Scaler routed to Nucleus Strings and then when I’m in the Cubase piano roll on the Nucleus Strings track, have the midi notes play or not play according to the Keys Lock that’s enabled in Scaler.
Every time I think I have things set up correctly, it still plays all the notes as I move the midi in Nucleus Strings up and down the scale.
But if I move the midi event into a regular Scaler track that has the Keys Lock enabled, it will allow play the sound on certain notes in the piano roll (which is want I want to happen for Nucleus Strings)