if ( !$DESIGNTIME ) {
   /* キーのID = RegisterFunctionKey(Windowsの仮想コード) */
   Number LT = RegisterFunctionKey(37);
   Number RT = RegisterFunctionKey(39);
   …
}

Form Obj50_006 {
   X = 0;
   Y = 0;
   Width = 649;
   Height = 326;
   
   …
   
   TextBox TextBox2 {
      X = 139;
      Y = 39;
      Width = 102;
      Height = 30;
      IMEMode = $DHIRA;
      
      PrevTabKey = //.LT;
      NextTabKey = //.RT;
   }
   
   …
}