diff --git a/EXRAIL2.cpp b/EXRAIL2.cpp
index 41e749c..b2ac320 100644
--- a/EXRAIL2.cpp
+++ b/EXRAIL2.cpp
@@ -174,9 +174,6 @@ LookList* RMFT2::LookListLoader(OPCODE op1, OPCODE op2, OPCODE op3) {
   onCloseLookup=LookListLoader(OPCODE_ONCLOSE);
   onActivateLookup=LookListLoader(OPCODE_ONACTIVATE);
   onDeactivateLookup=LookListLoader(OPCODE_ONDEACTIVATE);
-  onRedLookup=LookListLoader(OPCODE_ONRED);
-  onAmberLookup=LookListLoader(OPCODE_ONAMBER);
-  onGreenLookup=LookListLoader(OPCODE_ONGREEN);
   onChangeLookup=LookListLoader(OPCODE_ONCHANGE);
   onClockLookup=LookListLoader(OPCODE_ONTIME);
   onOverloadLookup=LookListLoader(OPCODE_ONOVERLOAD);
@@ -184,12 +181,18 @@ LookList* RMFT2::LookListLoader(OPCODE op1, OPCODE op2, OPCODE op3) {
 
   // Second pass startup, define any turnouts or servos, set signals red
   // add sequences onRoutines to the lookups
-  for (int sigslot=0;;sigslot++) {
-    VPIN sigid=GETHIGHFLASHW(RMFT2::SignalDefinitions,sigslot*8);
-    if (sigid==0) break;  // end of signal list
-    doSignal(sigid & SIGNAL_ID_MASK, SIGNAL_RED);
+  if (compileFeatures & FEATURE_SIGNAL) {
+    onRedLookup=LookListLoader(OPCODE_ONRED);
+    onAmberLookup=LookListLoader(OPCODE_ONAMBER);
+    onGreenLookup=LookListLoader(OPCODE_ONGREEN);
+    for (int sigslot=0;;sigslot++) {
+      VPIN sigid=GETHIGHFLASHW(RMFT2::SignalDefinitions,sigslot*8);
+      if (sigid==0) break;  // end of signal list
+      doSignal(sigid & SIGNAL_ID_MASK, SIGNAL_RED);
+    }
   }
 
+
   int progCounter;
   for (progCounter=0;; SKIPOP){
     byte opcode=GET_OPCODE;
@@ -305,6 +308,8 @@ void RMFT2::ComandFilter(Print * stream, byte & opcode, byte & paramCount, int16
     break;
 
   case 'L':
+    if (compileFeatures & FEATURE_LCC) { 
+      // This entire code block is compiled out if LLC macros not used 
     if (paramCount==0) {  //<L>  LCC adapter introducing self
       LCCSerial=stream;   // now we know where to send events we raise
 
@@ -352,6 +357,7 @@ void RMFT2::ComandFilter(Print * stream, byte & opcode, byte & paramCount, int16
         if (!reject)  startNonRecursiveTask(F("LCC"),eventid,onLCCLookup[eventid]);
         opcode=0;
     }
+    }
     break; 
 
   default:  // other commands pass through
@@ -387,17 +393,19 @@ bool RMFT2::parseSlash(Print * stream, byte & paramCount, int16_t p[]) {
 	      if (flag & LATCH_FLAG) StringFormatter::send(stream,F(" LATCHED"));
       }
     }
-    // do the signals
-    // flags[n] represents the state of the nth signal in the table 
-    for (int sigslot=0;;sigslot++) {
-      VPIN sigid=GETHIGHFLASHW(RMFT2::SignalDefinitions,sigslot*8);
-      if (sigid==0) break; // end of signal list 
-      byte flag=flags[sigslot] & SIGNAL_MASK; // obtain signal flags for this id
-      StringFormatter::send(stream,F("\n%S[%d]"), 
-        (flag == SIGNAL_RED)? F("RED") : (flag==SIGNAL_GREEN) ? F("GREEN") : F("AMBER"),
-        sigid & SIGNAL_ID_MASK); 
-    } 
-    
+
+    if (compileFeatures & FEATURE_SIGNAL) {
+      // do the signals
+      // flags[n] represents the state of the nth signal in the table 
+      for (int sigslot=0;;sigslot++) {
+        VPIN sigid=GETHIGHFLASHW(RMFT2::SignalDefinitions,sigslot*8);
+        if (sigid==0) break; // end of signal list 
+        byte flag=flags[sigslot] & SIGNAL_MASK; // obtain signal flags for this id
+        StringFormatter::send(stream,F("\n%S[%d]"), 
+          (flag == SIGNAL_RED)? F("RED") : (flag==SIGNAL_GREEN) ? F("GREEN") : F("AMBER"),
+          sigid & SIGNAL_ID_MASK); 
+      } 
+    }
     StringFormatter::send(stream,F(" *>\n"));
     return true;
   }
@@ -1018,11 +1026,12 @@ void RMFT2::loop2() {
     break;
 
   case OPCODE_LCC:  // short form LCC
-       if (LCCSerial) StringFormatter::send(LCCSerial,F("<L x%h>"),(uint16_t)operand);
+      if ((compileFeatures & FEATURE_LCC) && LCCSerial) 
+          StringFormatter::send(LCCSerial,F("<L x%h>"),(uint16_t)operand);
        break; 
 
   case OPCODE_LCCX: // long form LCC
-       if (LCCSerial)
+       if ((compileFeatures & FEATURE_LCC) && LCCSerial)
             StringFormatter::send(LCCSerial,F("<L x%h%h%h%h>\n"),
                  getOperand(progCounter,1),
                  getOperand(progCounter,2),
@@ -1122,6 +1131,7 @@ int16_t RMFT2::getSignalSlot(int16_t id) {
 }
 
 /* static */ void RMFT2::doSignal(int16_t id,char rag) {
+  if (!(compileFeatures & FEATURE_SIGNAL)) return; // dont compile code below
   if (diag) DIAG(F(" doSignal %d %x"),id,rag);
   
   // Schedule any event handler for this signal change.
@@ -1189,6 +1199,7 @@ int16_t RMFT2::getSignalSlot(int16_t id) {
 }
 
 /* static */ bool RMFT2::isSignal(int16_t id,char rag) {
+  if (!(compileFeatures & FEATURE_LCC)) return false; 
   int16_t sigslot=getSignalSlot(id);
   if (sigslot<0) return false; 
   return (flags[sigslot] & SIGNAL_MASK) == rag;
diff --git a/EXRAIL2.h b/EXRAIL2.h
index bc1839f..951826c 100644
--- a/EXRAIL2.h
+++ b/EXRAIL2.h
@@ -91,7 +91,10 @@ enum thrunger: byte {
   thrunge_lcd,  // Must be last!!
   };
 
-
+  // Flag bits for compile time feature
+  static const byte FEATURE_SIGNAL= 0x80;
+  static const byte FEATURE_LCC   = 0x40;
+  
  
   // Flag bits for status of hardware and TPL
   static const byte SECTION_FLAG = 0x80;
@@ -198,6 +201,7 @@ private:
    
    static const int countLCCLookup;
    static int onLCCLookup[];
+   static const byte compileFeatures;
     
   // Local variables - exist for each instance/task 
     RMFT2 *next;   // loop chain 
diff --git a/EXRAILMacros.h b/EXRAILMacros.h
index ced0725..0e28560 100644
--- a/EXRAILMacros.h
+++ b/EXRAILMacros.h
@@ -75,6 +75,30 @@ void exrailHalSetup() {
    #include "myAutomation.h"
 }
 
+// Pass 1c detect compile time featurtes
+#include "EXRAIL2MacroReset.h"
+#undef SIGNAL
+#define SIGNAL(redpin,amberpin,greenpin) | FEATURE_SIGNAL 
+#undef SIGNALH
+#define SIGNALH(redpin,amberpin,greenpin) | FEATURE_SIGNAL 
+#undef SERVO_SIGNAL
+#define SERVO_SIGNAL(vpin,redval,amberval,greenval) | FEATURE_SIGNAL 
+#undef DCC_SIGNAL
+#define DCC_SIGNAL(id,addr,subaddr) | FEATURE_SIGNAL
+#undef VIRTUAL_SIGNAL
+#define VIRTUAL_SIGNAL(id) | FEATURE_SIGNAL
+
+#undef LCC
+#define LCC(eventid)  | FEATURE_LCC
+#undef LCCX
+#define LCCX(senderid,eventid) | FEATURE_LCC 
+#undef ONLCC
+#define ONLCC(senderid,eventid) | FEATURE_LCC
+
+const byte RMFT2::compileFeatures = 0
+   #include "myAutomation.h"
+;
+
 // Pass 2 create throttle route list 
 #include "EXRAIL2MacroReset.h"
 #undef ROUTE