Nested Switch/Case Issue

Projects Programming
13

I SEE what I am doing wrong, I just don't know how to overcome it. Looking at the top of void loop, an first saying if NO option is active, then present the user with a menu.

if (Serial.available() > 0 ) {
    if (exitA == true && exitB == true) {
      topMenu = Serial.read();
    }

I am then making the mistake of choosing between the two rather than having BOTH subMenuA and subMenuB listening into Serial.read (somehow)...

if (exitA == false && exitB == true) {
      subMenuA = Serial.read();                             //    <<-- Option A is active

    }
    else if (exitA == true && exitB == false) {        // OR Option B is active
      subMenuB = Serial.read();
    }

I get what I am doing wrong, I just do not know how you can have subMenuA, B, C and D listening to Serial.read() at the same time.