text: class FMC_COMM_Altn {
      static ShowPage(fmc) {
          fmc.activeSystem = "FMC";
          fmc.clearDisplay();
          
          const updateView = () => {
              fmc.setTemplate([
                  ["ATC INDEX"],
                  ["\xa0UPLINK", ""],
                  ["<RTE 1", "POS REPORT>"],
                  ["\xa0UPLINK (2)", ""],
                  ["<ALTN", ""],
                  ["", ""],
                  ["<PERF", "FREE TEXT>"],
                  ["", ""],
                  ["<TAKEOFF", "CLEARANCE>"],
                  ["", ""],
                  ["<WIND", "VOICE>"],
                  ["", "DATA LINK", "__FMCSEPARATOR"],
                  ["<DES FORECAST", "READY"]
              ]);
          }
          updateView();
          
          fmc.onLeftInput[5] = () => {
              FMC_Menu.ShowPage(fmc);
          }
      }
  }