diff --git a/tutorials/keybrd_3b_multi-layerLock/keybrd_3b_multi-layerLock.ino b/tutorials/keybrd_3b_multi-layerLock/keybrd_3b_multi-layerLock.ino
index 6f33f96..1a11c19 100644
--- a/tutorials/keybrd_3b_multi-layerLock/keybrd_3b_multi-layerLock.ino
+++ b/tutorials/keybrd_3b_multi-layerLock/keybrd_3b_multi-layerLock.ino
@@ -1,4 +1,4 @@
-/* keybrd_3b_layerLock.ino
+/* keybrd_3b_multi-layerLock.ino
 
 This sketch:
     is firmware for a simple 2-layer keyboard
diff --git a/tutorials/keybrd_3d_sublayerNestedKeys/keybrd_3d_sublayerNestedKeys.ino b/tutorials/keybrd_3d_sublayerNestedKeys/keybrd_3d_sublayerNestedKeys.ino
new file mode 100644
index 0000000..7d16c91
--- /dev/null
+++ b/tutorials/keybrd_3d_sublayerNestedKeys/keybrd_3d_sublayerNestedKeys.ino
@@ -0,0 +1,144 @@
+/* keybrd_3d_sublayerNested.ino
+
+This sketch:
+    is firmware for a simple 2-layer keyboard
+    runs on the first two rows and columns of a breadboard keyboard
+
+| Layout | **0** | **1** | **2** |
+|:------:|:-----:|:-----:|:-----:|
+|  **0** | a - 1 | b =   | c Num |
+|  **1** |Normal | Sym   | Enter |
+
+normal layer keys are a b c
+sym layer keys are brackets [ ] and num
+num layer keys are 6 7
+The num layer key is located on the sym layer
+num layer is active while holding sym+num
+
+Each cell in the table's body represents a key.
+The layered keys in column 1 have two layers; one character for each layer.
+Letters 'a' and 'b' are on the normal layer.  Numbers '1' and '2' are on the fn layer.
+Holding the fn key down makes it the active layer.  Releasing the fn key restores the normal layer.
+*/
+// ################## GLOBAL ###################
+// ================= INCLUDES ==================
+//Keys
+#include <Code_Sc.h>
+#include <Code_Null.h>
+#include <LayerState.h>
+#include <Code_LayerLock.h>
+#include <Code_LayerHold.h>
+#include <Key_LayeredKeys.h>
+#include <Key_LayeredKeys1.h>
+
+//Matrix
+#include <Row.h>
+#include <Scanner_uC.h>
+#include <ScanDelay.h>
+
+// ============ SPEED CONFIGURATION ============
+ScanDelay scanDelay(9000);
+
+// ================== SCANNER ==================
+uint8_t readPins[] = {14, 15, 16};
+uint8_t readPinCount = sizeof(readPins)/sizeof(*readPins);
+
+Scanner_uC scanner(LOW, readPins, readPinCount);
+
+/* =================== CODES ===================
+The CODES section instantiates six codes, one for each item in the layout.
+*/
+/* ---------------- LAYER CODE -----------------
+enum assigns layerId numbers to the layers.
+*/
+enum layers { NORMAL, SYM };
+
+/* layerState keeps track of the active layer.
+*/
+LayerState layerState;
+
+LayerStateInterface& Key_LayeredKeys::refLayerState = layerState;
+/*
+NORMAL=0 and FN=1.  LayerState's default layerId is 0.
+The Code_LayerHold constructor has two parameters:
+ 1) the layerId that will be active while the key is held down
+ 2) a LayerState that will keep track of the active layer
+When l_fn is pressed, it tells layerState to change the active layer to 1.
+When l_fn is released, it tells layerState that layer 1 is released, and layerState restores the default layer.
+*/
+Code_LayerLock l_normal(NORMAL, layerState);
+Code_LayerLock l_sym(SYM, layerState);
+
+//sublayer
+enum subLayers { SUBSYM, SUBNUM };
+
+LayerState sublayerState;
+
+Code_LayerHold l_num(SUBNUM, sublayerState);
+
+LayerStateInterface& Key_LayeredKeys1::refLayerState = sublayerState;
+
+// ---------------- SCAN CODES -----------------
+Code_Sc s_a(KEY_A);
+Code_Sc s_b(KEY_B);
+Code_Sc s_c(KEY_C);
+
+Code_Sc s_minus(KEY_MINUS);
+Code_Sc s_equal(KEY_EQUAL);
+Code_Sc s_enter(KEY_ENTER);
+
+Code_Sc s_1(KEY_1);
+Code_Null code_null;
+
+/* =================== KEYS ====================
+Here we pack Codes into keys.
+The Key_LayeredKeys constructor takes one array of Code pointers - one Code object per layer.
+
+The Key object names in this sketch start with a "k_" followed by row-column coordinates.
+*/
+
+Key* const ptrsCodes_sub00[] = { &s_minus, &s_1 };
+Key_LayeredKeys1 k_sub00(ptrsCodes_sub00);
+
+Key* const ptrsCodes_00[] = { &s_a, &k_sub00 };
+Key_LayeredKeys k_00(ptrsCodes_00);
+
+Key* const ptrsCodes_01[] = { &s_b, &s_equal };
+Key_LayeredKeys k_01(ptrsCodes_01);
+
+Key* const ptrsCodes_02[] = { &s_c, &l_num };
+Key_LayeredKeys k_02(ptrsCodes_02);
+
+/* HOW LAYERED OBJECTS WORK
+When a Key_LayeredKeys object is pressed, it gets the active layer id from layerState.
+It then uses the layer id as an array index to call the Code of the active layer.
+The Code object then sends its scancode over USB.
+*/
+
+/* =================== ROWS ====================
+Here we pack Key pointers into row objects.
+
+Codes are a kind of Key that only have one layer.
+So rows can contain a mix of codes and multi-layered keys.
+Arrays ptrsKeys_0[] and ptrsKeys_1[] contain both Code pointers and Key pointers.
+*/
+Key* const ptrsKeys_0[] = { &k_00, &k_01, &k_02 };
+uint8_t keyCount_0 = sizeof(ptrsKeys_0)/sizeof(*ptrsKeys_0);
+Row row_0(scanner, 0, ptrsKeys_0, keyCount_0);
+
+Key* const ptrsKeys_1[] = { &l_normal, &l_sym, &s_enter };
+uint8_t keyCount_1 = sizeof(ptrsKeys_1)/sizeof(*ptrsKeys_1);
+Row row_1(scanner, 1, ptrsKeys_1, keyCount_1);
+
+// ################### MAIN ####################
+void setup()
+{
+    Keyboard.begin();
+}
+
+void loop()
+{
+    row_0.process();
+    row_1.process();
+    scanDelay.delay();
+}
diff --git a/tutorials/keybrd_3d_sublayerNested/keybrd_3d_sublayerNested.ino b/tutorials/keybrd_3e_sublayerNestedScSc/keybrd_3e_sublayerNestedScSc.ino
similarity index 99%
rename from tutorials/keybrd_3d_sublayerNested/keybrd_3d_sublayerNested.ino
rename to tutorials/keybrd_3e_sublayerNestedScSc/keybrd_3e_sublayerNestedScSc.ino
index fff245f..c88f14f 100644
--- a/tutorials/keybrd_3d_sublayerNested/keybrd_3d_sublayerNested.ino
+++ b/tutorials/keybrd_3e_sublayerNestedScSc/keybrd_3e_sublayerNestedScSc.ino
@@ -1,4 +1,4 @@
-/* keybrd_3d_sublayerNested.ino
+/* keybrd_3d_sublayerNestedScSc.ino
 
 This sketch:
     is firmware for a simple 2-layer keyboard
diff --git a/tutorials/keybrd_3e_autoShift/keybrd_3e_autoShift.ino b/tutorials/keybrd_3f_autoShift/keybrd_3f_autoShift.ino
similarity index 99%
rename from tutorials/keybrd_3e_autoShift/keybrd_3e_autoShift.ino
rename to tutorials/keybrd_3f_autoShift/keybrd_3f_autoShift.ino
index 2519b6f..63e4f26 100644
--- a/tutorials/keybrd_3e_autoShift/keybrd_3e_autoShift.ino
+++ b/tutorials/keybrd_3f_autoShift/keybrd_3f_autoShift.ino
@@ -1,4 +1,4 @@
-/* keybrd_3b_autoShift.ino
+/* keybrd_3f_autoShift.ino
 
 This sketch:
     is a simple 2-layer keyboard with AutoShift