diff --git a/src/lib/ebus/contrib/test/test_tem.cpp b/src/lib/ebus/contrib/test/test_tem.cpp
index 25897da7..4b06ebb9 100755
--- a/src/lib/ebus/contrib/test/test_tem.cpp
+++ b/src/lib/ebus/contrib/test/test_tem.cpp
@@ -70,7 +70,7 @@ class TestReader : public MappedFileReader {
     return RESULT_OK;  // leave it to DataField::create
   }
   result_t addFromFile(const string& filename, unsigned int lineNo, map<string, string>* row,
-      vector< map<string, string> >* subRows, string* errorDescription) override {
+      vector< map<string, string> >* subRows, string* errorDescription, bool replace) override {
     if (!row->empty() || subRows->empty()) {
       cout << "read line " << static_cast<unsigned>(lineNo) << ": read error: got "
           << static_cast<unsigned>(row->size()) << "/0 main, " << static_cast<unsigned>(subRows->size())
@@ -118,7 +118,7 @@ int main() {
   istringstream dummystr("#");
   string errorDescription;
   vector<string> row;
-  templates->readLineFromStream(&dummystr, "inline", false, &lineNo, &row, &errorDescription, NULL, NULL);
+  templates->readLineFromStream(&dummystr, "inline", false, &lineNo, &row, &errorDescription, false, NULL, NULL);
   const DataField* fields = NULL;
   for (unsigned int i = 0; i < sizeof(checks) / sizeof(checks[0]); i++) {
     string check[5] = checks[i];
@@ -156,7 +156,7 @@ int main() {
     lineNo = 0;
     dummystr.clear();
     dummystr.str("#");
-    result = reader.readLineFromStream(&dummystr, "inline", false, &lineNo, &row, &errorDescription, NULL, NULL);
+    result = reader.readLineFromStream(&dummystr, "inline", false, &lineNo, &row, &errorDescription, false, NULL, NULL);
     if (result != RESULT_OK) {
       cout << "\"" << check[0] << "\": reader header error: " << getResultCode(result) << ", " << errorDescription
           << endl;
@@ -164,7 +164,7 @@ int main() {
       continue;
     }
     lineNo = baseLine + i;
-    result = reader.readLineFromStream(&isstr, __FILE__, false, &lineNo, &row, &errorDescription, NULL, NULL);
+    result = reader.readLineFromStream(&isstr, __FILE__, false, &lineNo, &row, &errorDescription, false, NULL, NULL);
     fields = reader.m_fields;
 
     if (result != RESULT_OK) {
diff --git a/src/lib/ebus/test/test_data.cpp b/src/lib/ebus/test/test_data.cpp
index 614fcb12..3d93cf2a 100755
--- a/src/lib/ebus/test/test_data.cpp
+++ b/src/lib/ebus/test/test_data.cpp
@@ -69,7 +69,7 @@ class TestReader : public MappedFileReader {
     return RESULT_OK;  // leave it to DataField::create
   }
   result_t addFromFile(const string& filename, unsigned int lineNo, map<string, string>* row,
-      vector< map<string, string> >* subRows, string* errorDescription) override {
+      vector< map<string, string> >* subRows, string* errorDescription, bool replace) override {
     if (!row->empty() || subRows->empty()) {
       cout << "read line " << static_cast<unsigned>(lineNo) << ": read error: got "
           << static_cast<unsigned>(row->size()) << "/0 main, " << static_cast<unsigned>(subRows->size())
@@ -512,7 +512,7 @@ int main() {
   istringstream dummystr("#");
   string errorDescription;
   vector<string> row;
-  templates->readLineFromStream(&dummystr, __FILE__, false, &lineNo, &row, &errorDescription, NULL, NULL);
+  templates->readLineFromStream(&dummystr, __FILE__, false, &lineNo, &row, &errorDescription, false, NULL, NULL);
   const DataField* fields = NULL;
   for (unsigned int i = 0; i < sizeof(checks) / sizeof(checks[0]); i++) {
     string check[5] = checks[i];
@@ -567,7 +567,7 @@ int main() {
     }
     if (isTemplate) {
       lineNo = baseLine + i;
-      result = templates->readLineFromStream(&isstr, __FILE__, false, &lineNo, &row, &errorDescription, NULL, NULL);
+      result = templates->readLineFromStream(&isstr, __FILE__, false, &lineNo, &row, &errorDescription, false, NULL, NULL);
       if (result != RESULT_OK) {
         cout << "\"" << check[0] << "\": template read error: " << getResultCode(result) << ", "
             << errorDescription << endl;
@@ -579,7 +579,7 @@ int main() {
     lineNo = 0;
     dummystr.clear();
     dummystr.str("#");
-    result = reader.readLineFromStream(&dummystr, __FILE__, false, &lineNo, &row, &errorDescription, NULL, NULL);
+    result = reader.readLineFromStream(&dummystr, __FILE__, false, &lineNo, &row, &errorDescription, false, NULL, NULL);
     if (result != RESULT_OK) {
       cout << "\"" << check[0] << "\": read header error: " << getResultCode(result) << ", " << errorDescription
           << endl;
@@ -587,7 +587,7 @@ int main() {
       continue;
     }
     lineNo = baseLine + i;
-    result = reader.readLineFromStream(&isstr, "", false, &lineNo, &row, &errorDescription, NULL, NULL);
+    result = reader.readLineFromStream(&isstr, "", false, &lineNo, &row, &errorDescription, false, NULL, NULL);
     fields = reader.m_fields;
     if (failedCreate) {
       if (result == RESULT_OK) {
diff --git a/src/lib/ebus/test/test_filereader.cpp b/src/lib/ebus/test/test_filereader.cpp
index cd58eee8..5fe54f36 100755
--- a/src/lib/ebus/test/test_filereader.cpp
+++ b/src/lib/ebus/test/test_filereader.cpp
@@ -73,8 +73,8 @@ static unsigned int baseLine = 0;
 
 class NoopReader : public FileReader {
  public:
-  result_t addFromFile(const string& filename, unsigned int lineNo, vector<string>* row,
-      string* errorDescription) override {
+  result_t addFromFile(const string& filename, unsigned int lineNo, vector<string>* row, string* errorDescription,
+    bool replace) override {
     return RESULT_OK;
   }
 };
@@ -98,7 +98,7 @@ class TestReader : public MappedFileReader {
     return RESULT_ERR_EOF;
   }
   result_t addFromFile(const string& filename, unsigned int lineNo, map<string, string>* row,
-      vector< map<string, string> >* subRows, string* errorDescription) override {
+      vector< map<string, string> >* subRows, string* errorDescription, bool replace) override {
     if (row->empty() || (m_expectedCols == 3) != subRows->empty()) {
       cout << "read line " << static_cast<unsigned>(baseLine + lineNo) << ": read error: got "
           << static_cast<unsigned>(row->size()) << "/3 main, " << static_cast<unsigned>(subRows->size())
@@ -231,7 +231,7 @@ int main(int argc, char** argv) {
   vector<string> row;
   string errorDescription;
   while (ifs.peek() != EOF) {
-    result_t result = reader.readLineFromStream(&ifs, "", true, &lineNo, &row, &errorDescription, &hash, &size);
+    result_t result = reader.readLineFromStream(&ifs, "", true, &lineNo, &row, &errorDescription, false, &hash, &size);
     if (result != RESULT_OK) {
       cout << "  error " << getResultCode(result) << endl;
       error = true;
@@ -271,7 +271,7 @@ int main(int argc, char** argv) {
   subDefaults.resize(1);
   subDefaults[0]["subcol 2"] = ";default of sub 0 subcol 2";
   while (ifs.peek() != EOF) {
-    result_t result = reader2.readLineFromStream(&ifs, "", true, &lineNo, &row, &errorDescription, &hash, &size);
+    result_t result = reader2.readLineFromStream(&ifs, "", true, &lineNo, &row, &errorDescription, false, &hash, &size);
     if (result != RESULT_OK) {
       cout << "  error " << getResultCode(result) << endl;
       error = true;
diff --git a/src/lib/ebus/test/test_message.cpp b/src/lib/ebus/test/test_message.cpp
index ce9fff2b..4686bb10 100755
--- a/src/lib/ebus/test/test_message.cpp
+++ b/src/lib/ebus/test/test_message.cpp
@@ -62,7 +62,7 @@ DataFieldTemplates* getTemplates(const string& filename) {
 }
 
 result_t loadDefinitionsFromConfigPath(FileReader* reader, const string& filename, bool verbose,
-    map<string, string>* defaults, string* errorDescription) {
+    map<string, string>* defaults, string* errorDescription, bool replace = false) {
   time_t mtime = 0;
   istream* stream = FileReader::openFile(filename, errorDescription, &mtime);
   result_t result;
@@ -186,12 +186,12 @@ int main() {
   istringstream dummystr("#");
   string errorDescription;
   vector<string> row;
-  templates->readLineFromStream(&dummystr, __FILE__, false, &lineNo, &row, &errorDescription, NULL, NULL);
+  templates->readLineFromStream(&dummystr, __FILE__, false, &lineNo, &row, &errorDescription, false, NULL, NULL);
   lineNo = 0;
   MessageMap* messages = new MessageMap("");
   dummystr.clear();
   dummystr.str("#");
-  messages->readLineFromStream(&dummystr, __FILE__, false, &lineNo, &row, &errorDescription, NULL, NULL);
+  messages->readLineFromStream(&dummystr, __FILE__, false, &lineNo, &row, &errorDescription, false, NULL, NULL);
   vector< vector<string> > defaultsRows;
   Message* message = NULL;
   vector<MasterSymbolString*> mstrs;
@@ -222,7 +222,7 @@ int main() {
     lineNo = baseLine + i;
     cout << "line " << (lineNo+1) << " ";
     if (isTemplate) {
-      result = templates->readLineFromStream(&isstr, __FILE__, false, &lineNo, &row, &errorDescription, NULL, NULL);
+      result = templates->readLineFromStream(&isstr, __FILE__, false, &lineNo, &row, &errorDescription, false, NULL, NULL);
       if (result != RESULT_OK) {
         cout << "\"" << check[0] << "\": template read error: " << getResultCode(result) << ", " << errorDescription
             << endl;
@@ -236,7 +236,7 @@ int main() {
     }
     if (isstr.peek() == '*') {
       // store defaults or condition
-      result = messages->readLineFromStream(&isstr, __FILE__, false, &lineNo, &row, &errorDescription, NULL, NULL);
+      result = messages->readLineFromStream(&isstr, __FILE__, false, &lineNo, &row, &errorDescription, false, NULL, NULL);
       if (result != RESULT_OK) {
         cout << "\"" << check[0] << "\": default read error: " << getResultCode(result) << ", " << errorDescription << endl;
         error = true;
@@ -318,7 +318,7 @@ int main() {
       }
       cout << "\"" << check[2] << "\": find OK" << endl;
     } else {
-      result = messages->readLineFromStream(&isstr, __FILE__, false, &lineNo, &row, &errorDescription, NULL, NULL);
+      result = messages->readLineFromStream(&isstr, __FILE__, false, &lineNo, &row, &errorDescription, false, NULL, NULL);
       if (failedCreate) {
         if (result == RESULT_OK) {
           cout << "\"" << check[0] << "\": failed create error: unexpectedly succeeded" << endl;