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diff --git a/users/ericgebhart/mod_layers/hrm_gacs.h b/users/ericgebhart/mod_layers/hrm_gacs.h
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+#pragma once
+/*
+  Copyright 2018-2022 Eric Gebhart <e.a.gebhart@gmail.com>
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+// Home row mods variant of mod layers.
+
+// MOD_ROW
+// variants.
+// input 5 get six, left and right language specific outer edge keys.
+
+// no edge keys.
+// input 5 get 5 with mods applied.
+
+// input 6 get 6 with mods applied.
+
+// base cols in out.  5, 5_6, 6.
+// input column count, output column count, if different.
+
+// ROW0  - Number row.
+// LEFT.
+#define ROW0L_5_hrm_gacs(K01, K02, K03, K04, K05)       \
+  K01, K02, K03, K04, K05
+// take and put an extra column in front. Mod K01 how you want it.
+#define ROW0L_6_hrm_gacs(K01, K02, K03, K04, K05, K06)  K01,    \
+    ROW0L_5_hrm_gacs(K02, K03, K04, K05, K06)
+
+// 5 into 6, derivitive of the first two.
+#define ROW0L_5_6_hrm_gacs(K01, K02, K03, K04, K05)     \
+  ROW0L_6_hrm_gacs(LEFT_0, K01, K02, K03, K04, K05)
+
+// RIGHT.
+#define ROW0R_5_hrm_gacs(K01, K02, K03, K04, K05)       \
+  K01, K02, K03, K04, K05
+// take and put an extra column in front. Mod K01 how you want it.
+#define ROW0R_6_hrm_gacs(K01, K02, K03, K04, K05, K06)  \
+  ROW0R_5_hrm_gacs(K01, K02, K03, K04, K05), K06
+
+// 5 into 6, derivitive of the first two.
+#define ROW0R_5_6_hrm_gacs(K01, K02, K03, K04, K05)     \
+  ROW0R_6_hrm_gacs(K01, K02, K03, K04, K05, RIGHT_0)
+
+
+// ROW1
+// LEFT.
+#define ROW1L_5_hrm_gacs(K01, K02, K03, K04, K05)       \
+  K01, K02, K03, LT(_NAV, K04), K05
+// take and put an extra column in front. Mod K01 how you want it.
+#define ROW1L_6_hrm_gacs(K01, K02, K03, K04, K05, K06)  K01,    \
+    ROW1L_5_hrm_gacs(K02, K03, K04, K05, K06)
+
+// 5 into 6, derivitive of the first two.
+#define ROW1L_5_6_hrm_gacs(K01, K02, K03, K04, K05)     \
+  ROW1L_6_hrm_gacs(LEFT_1, K01, K02, K03, K04, K05)
+
+// RIGHT.
+#define ROW1R_5_hrm_gacs(K01, K02, K03, K04, K05)                       \
+  K01, K02, K03, K04, LT(_LAYERS, K05)                                  \
+    // take and put an extra column in front. Mod K01 how you want it.
+#define ROW1R_6_hrm_gacs(K01, K02, K03, K04, K05, K06)  \
+  ROW1R_5_hrm_gacs(K01, K02, K03, K04, K05), K06
+
+// 5 into 6, derivitive of the first two.
+#define ROW1R_5_6_hrm_gacs(K01, K02, K03, K04, K05)     \
+  ROW1R_6_hrm_gacs(K01, K02, K03, K04, K05, RIGHT_1)
+
+
+
+// HOME ROW - ROW2
+// home row, shift, alt, ctl, gui - gui, ctl, alt, shift.
+// using MT so we can specify left and right.
+// caps_word needs left and right shift.
+
+// LEFT.
+#define ROW2L_5_hrm_gacs(K01, K02, K03, K04, K05)                       \
+  MT(MOD_LGUI, K01), MT(MOD_LALT, K02), MT(MOD_LCTL, K03), MT(MOD_LSFT, K04), K05
+// take and put an extra column in front. Mod K01 how you want it.
+#define ROW2L_6_hrm_gacs(K01, K02, K03, K04, K05, K06)  K01,    \
+    ROW2L_5_hrm_gacs(K02, K03, K04, K05, K06)
+
+// 5 into 6, derivitive of the first two.
+#define ROW2L_5_6_hrm_gacs(K01, K02, K03, K04, K05)     \
+  ROW2L_6_hrm_gacs(LEFT_2, K01, K02, K03, K04, K05)
+
+// RIGHT.
+#define ROW2R_5_hrm_gacs(K01, K02, K03, K04, K05)                       \
+  K01, MT(MOD_RSFT, K02),  MT(MOD_RCTL, K03), MT(MOD_RALT, K04), MT(MOD_RGUI, K05) \
+    // take and put an extra column in front. Mod K01 how you want it.
+#define ROW2R_6_hrm_gacs(K01, K02, K03, K04, K05, K06)  \
+  ROW2R_5_hrm_gacs(K01, K02, K03, K04, K05),  K06
+
+// 5 into 6, derivitive of the first two.
+#define ROW2R_5_6_hrm_gacs(K01, K02, K03, K04, K05)     \
+  ROW2R_6_hrm_gacs(K01, K02, K03, K04, K05, RIGHT_2)
+
+
+// ROW 3
+// LEFT.
+#define ROW3L_5_hrm_gacs(K01, K02, K03, K04, K05)       \
+  K01, K02, K03, K04, K05
+// take and put an extra column in front. Mod K01 how you want it.
+#define ROW3L_6_hrm_gacs(K01, K02, K03, K04, K05, K06)  K01,    \
+    ROW3L_5_hrm_gacs(K02, K03, K04, K05, K06)
+
+// 5 into 6, derivitive of the first two.
+#define ROW3L_5_6_hrm_gacs(K01, K02, K03, K04, K05)     \
+  ROW3L_6_hrm_gacs(LEFT_3,  K01, K02, K03, K04, K05)
+
+// RIGHT.
+#define ROW3R_5_hrm_gacs(K01, K02, K03, K04, K05)       \
+  K01, LT(_NAV, K02), K03, LT(LANG_N(_SYMB), K04), K05
+// take and put an extra column in front. Mod K01 how you want it.
+#define ROW3R_6_hrm_gacs(K01, K02, K03, K04, K05, K06)  K01,    \
+    ROW3R_5_hrm_gacs(K02, K03, K04, K05, K06)
+
+// 5 into 6, derivitive of the first two.
+#define ROW3R_5_6_hrm_gacs(K01, K02, K03, K04, K05)     \
+  ROW3R_6_hrm_gacs(K01, K02, K03, K04, K05, RIGHT_3)