diff --git a/firmware/controllers/core/logic_expression.cpp b/firmware/controllers/core/logic_expression.cpp
index 06fdf384db..c7d65f56a6 100644
--- a/firmware/controllers/core/logic_expression.cpp
+++ b/firmware/controllers/core/logic_expression.cpp
@@ -200,6 +200,7 @@ void LEElementPool::reset() {
 
 LEElement *LEElementPool::next() {
 	if (index == size - 1) {
+		// todo: this should not be a fatal error, just an error
 		firmwareError("LE_ELEMENT_POOL_SIZE overflow");
 		return NULL;
 	}
@@ -283,3 +284,15 @@ LEElement * parseExpression(LEElementPool *pool, const char * line) {
 	}
 	return first;
 }
+
+#if (EFI_PROD_CODE || EFI_SIMULATOR)
+
+static void eval(char *line, Engine *engine) {
+
+}
+
+void initEval(Engine *engine) {
+	addConsoleActionSP("evan", (VoidCharPtrVoidPtr)eval, engine);
+}
+
+#endif
diff --git a/firmware/controllers/core/logic_expression.h b/firmware/controllers/core/logic_expression.h
index d5fd287b38..7d11a26b97 100644
--- a/firmware/controllers/core/logic_expression.h
+++ b/firmware/controllers/core/logic_expression.h
@@ -100,5 +100,6 @@ const char *getNextToken(const char *line, char *buffer);
 bool isNumeric(const char* line);
 le_action_e parseAction(const char * line);
 LEElement * parseExpression(LEElementPool *pool, const char * line);
+void initEval(Engine *engine);
 
 #endif /* LOGIC_EXPRESSION_H_ */
diff --git a/firmware/util/cli_registry.c b/firmware/util/cli_registry.c
index 760b08d71e..f40ef6aee5 100644
--- a/firmware/util/cli_registry.c
+++ b/firmware/util/cli_registry.c
@@ -89,6 +89,10 @@ void addConsoleActionS(const char *token, VoidCharPtr callback) {
 	doAddAction(token, STRING_PARAMETER, (Void) callback, NULL);
 }
 
+void addConsoleActionSP(const char *token, VoidCharPtrVoidPtr callback, void *param) {
+	doAddAction(token, STRING_PARAMETER_P, (Void) callback, NULL);
+}
+
 void addConsoleActionSS(const char *token, VoidCharPtrCharPtr callback) {
 	doAddAction(token, STRING2_PARAMETER, (Void) callback, NULL);
 }
@@ -204,6 +208,12 @@ void handleActionWithParameter(TokenCallback *current, char *parameter) {
 		return;
 	}
 
+	if (current->parameterType == STRING_PARAMETER_P) {
+		VoidCharPtrVoidPtr callbackS = (VoidCharPtrVoidPtr) current->callback;
+		(*callbackS)(parameter, current->param);
+		return;
+	}
+
 	// todo: refactor this hell!
 	if (current->parameterType == STRING2_PARAMETER || current->parameterType == STRING2_PARAMETER_P) {
 		int spaceIndex = findEndOfToken(parameter);
diff --git a/firmware/util/cli_registry.h b/firmware/util/cli_registry.h
index 25b6b10501..dc177fe9c1 100644
--- a/firmware/util/cli_registry.h
+++ b/firmware/util/cli_registry.h
@@ -24,6 +24,7 @@ typedef enum {
 	FLOAT_PARAMETER,
 	FLOAT_PARAMETER_P,
 	STRING_PARAMETER,
+	STRING_PARAMETER_P,
 	STRING2_PARAMETER,
 	STRING2_PARAMETER_P,
 	STRING3_PARAMETER,
@@ -89,7 +90,7 @@ void addConsoleActionFF(const char *token, VoidFloatFloat callback);
 void addConsoleActionFFP(const char *token, VoidFloatFloatVoidPtr callback, void *param);
 
 void addConsoleActionS(const char *token, VoidCharPtr callback);
-void addConsoleActionSP(const char *token, VoidCharPtrVoidPtr callback);
+void addConsoleActionSP(const char *token, VoidCharPtrVoidPtr callback, void *param);
 
 void addConsoleActionSS(const char *token, VoidCharPtrCharPtr callback);
 void addConsoleActionSSP(const char *token, VoidCharPtrCharPtrVoidPtr callback, void *param);