[FMX] go to frame on pressing a key sequence

can anyone tell me how you would press say three keys at once and be taken to a specific frame?

thats the best i can do and it doesn’t quite work, one in ten trys it works so im utterly confused

onClipEvent (enterFrame) {
if (Key.isDown(74)) {
if (Key.isDown(77)) {
if (Key.isDown(70)) {
trace(“test”);
}
}
}
}

anyway, thanx to anyone who can help