diff --git a/g2core/config.cpp b/g2core/config.cpp
index 3018968d..d5bb4e42 100644
--- a/g2core/config.cpp
+++ b/g2core/config.cpp
@@ -238,6 +238,7 @@ stat_t get_flt(nvObj_t *nv)
 }
 
 /* Generic sets()
+ *  set_noop() - set nothing and return OK
  *  set_nul()  - set nothing, return OK
  *  set_ro()   - set nothing, return read-only error
  *  set_ui8()  - set value as 8 bit uint8_t value
@@ -250,8 +251,15 @@ stat_t get_flt(nvObj_t *nv)
  *  set_flt()  - set value as float
  */
 
+stat_t set_noop(nvObj_t *nv) {
+    nv->valuetype = TYPE_NULL;
+    return (STAT_OK);                       // hack until JSON is refactored
+}
+
 stat_t set_nul(nvObj_t *nv) { 
-    return (STAT_OK); 
+//    nv->valuetype = TYPE_NULL;
+//    return (STAT_PARAMETER_IS_READ_ONLY);   // this is what it should be
+    return (STAT_OK);                       // hack until JSON is refactored
 }
 
 stat_t set_ro(nvObj_t *nv) {
diff --git a/g2core/config.h b/g2core/config.h
index 3100d707..0dbe2607 100644
--- a/g2core/config.h
+++ b/g2core/config.h
@@ -2,7 +2,7 @@
  * config.h - configuration sub-system generic part (see config_app for application part)
  * This file is part of the g2core project
  *
- * Copyright (c) 2010 - 2016 Alden S. Hart, Jr.
+ * Copyright (c) 2010 - 2017 Alden S. Hart, Jr.
  *
  * This file ("the software") is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License, version 2 as published by the
@@ -317,6 +317,7 @@ bool nv_index_lt_groups(index_t index); // (see config_app.c)
 bool nv_group_is_prefixed(char *group);
 
 // generic internal functions and accessors
+stat_t set_noop(nvObj_t *nv);           // set nothing and return OK
 stat_t set_nul(nvObj_t *nv);            // set nothing, return OK
 stat_t set_ro(nvObj_t *nv);             // set nothing, return read-only error
 stat_t set_ui8(nvObj_t *nv);            // set uint8_t value
diff --git a/g2core/config_app.cpp b/g2core/config_app.cpp
index d1081734..3934cfca 100644
--- a/g2core/config_app.cpp
+++ b/g2core/config_app.cpp
@@ -2,8 +2,8 @@
  * config_app.cpp - application-specific part of configuration data
  * This file is part of the g2core project
  *
- * Copyright (c) 2013 - 2016 Alden S. Hart, Jr.
- * Copyright (c) 2016 Robert Giseburt
+ * Copyright (c) 2013 - 2017 Alden S. Hart, Jr.
+ * Copyright (c) 2016 - 2017 Robert Giseburt
  *
  * This file ("the software") is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License, version 2 as published by the
@@ -113,9 +113,7 @@ const cfgItem_t cfgArray[] = {
 
     // dynamic model attributes for reporting purposes (up front for speed)
     { "",   "stat",_f0, 0, cm_print_stat, cm_get_stat, set_ro, (float *)&cs.null, 0 },      // combined machine state
-//    { "",   "n",   _fi, 0, cm_print_line, cm_get_mline,set_ro, (float *)&cm.gm.linenum,0 }, // Model line number
-//    { "",   "line",_fi, 0, cm_print_line, cm_get_line, set_ro, (float *)&cm.gm.linenum,0 }, // Active line number - model or runtime line number
-    { "",   "n",   _fi, 0, cm_print_line, cm_get_mline,set_ro, (float *)&cs.null, 0 },      // Model line number
+    { "",   "n",   _fi, 0, cm_print_line, cm_get_mline,set_noop,(float *)&cs.null, 0 },     // Model line number
     { "",   "line",_fi, 0, cm_print_line, cm_get_line, set_ro, (float *)&cs.null, 0 },      // Active line number - model or runtime line number
     { "",   "vel", _f0, 2, cm_print_vel,  cm_get_vel,  set_ro, (float *)&cs.null, 0 },      // current velocity
     { "",   "feed",_f0, 2, cm_print_feed, cm_get_feed, set_ro, (float *)&cs.null, 0 },      // feed rate
diff --git a/g2core/plan_exec.cpp b/g2core/plan_exec.cpp
index 719308b5..05d86c66 100644
--- a/g2core/plan_exec.cpp
+++ b/g2core/plan_exec.cpp
@@ -2,8 +2,8 @@
  * plan_exec.cpp - execution function for acceleration managed lines
  * This file is part of the g2core project
  *
- * Copyright (c) 2010 - 2016 Alden S. Hart, Jr.
- * Copyright (c) 2012 - 2016 Rob Giseburt
+ * Copyright (c) 2010 - 2017 Alden S. Hart, Jr.
+ * Copyright (c) 2012 - 2017 Rob Giseburt
  *
  * This file ("the software") is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License, version 2 as published by the
diff --git a/g2core/plan_line.cpp b/g2core/plan_line.cpp
index ff14195c..ab00ce8c 100644
--- a/g2core/plan_line.cpp
+++ b/g2core/plan_line.cpp
@@ -2,8 +2,8 @@
  * plan_line.c - acceleration managed line planning and motion execution
  * This file is part of the g2core project
  *
- * Copyright (c) 2010 - 2016 Alden S. Hart, Jr.
- * Copyright (c) 2012 - 2016 Rob Giseburt
+ * Copyright (c) 2010 - 2017 Alden S. Hart, Jr.
+ * Copyright (c) 2012 - 2017 Rob Giseburt
  *
  * This file ("the software") is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License, version 2 as published by the