diff --git a/config/corne.keymap b/config/corne.keymap
index 8fd1bd1..c827ee5 100644
--- a/config/corne.keymap
+++ b/config/corne.keymap
@@ -92,7 +92,17 @@
             compatible = "zmk,behavior-caps-word";
             label = "CAPS_WORD";
             #binding-cells = <0>;
-            continue-list = <UNDERSCORE>;
+            continue-list = <UNDERSCORE BACKSPACE>;
+        };
+
+        spec_sym: spec_sym {
+            compatible = "zmk,behavior-hold-tap";
+            label = "SPEC_SYM";
+            bindings = <&kp>, <&kp>;
+
+            #binding-cells = <2>;
+            tapping-term-ms = <180>;
+            flavor = "balanced";
         };
     };
 
@@ -119,9 +129,9 @@
 
         fn {
             bindings = <
-&none  &kp F12  &kp F7  &kp F8  &kp F9  &kp PRINTSCREEN    &bt BT_SEL 0  &bt BT_SEL 1  &bt BT_SEL 2  &bt BT_SEL 3   &bt BT_SEL 4   &none
-&none  &kp F11  &kp F4  &kp F5  &kp F6  &none              &none         &kp RCTRL     &kp RSHFT     &kp RIGHT_ALT  &kp RIGHT_GUI  &none
-&none  &kp F10  &kp F1  &kp F2  &kp F3  &none              &out OUT_USB  &out OUT_BLE  &none         &none          &bt BT_CLR     &none
+&none  &kp F12  &kp F7  &kp F8  &kp F9  &kp PRINTSCREEN    &bt BT_SEL 0  &bt BT_SEL 1  &bt BT_SEL 2  &bt BT_SEL 3  &bt BT_SEL 4  &none
+&none  &kp F11  &kp F4  &kp F5  &kp F6  &none              &none         &kp RCTRL     &kp RSHFT     &kp LEFT_ALT  &kp LEFT_GUI  &none
+&none  &kp F10  &kp F1  &kp F2  &kp F3  &none              &out OUT_USB  &out OUT_BLE  &none         &none         &bt BT_CLR    &none
                         &trans  &trans  &trans             &trans        &trans        &trans
             >;
         };
@@ -137,28 +147,28 @@
 
         num {
             bindings = <
-&none  &none   &kp N7  &kp N8  &kp N9  &kp PLUS     &none   &none      &none      &sys_reset     &bootloader    &none
-&none  &none   &kp N4  &kp N5  &kp N6  &kp MINUS    &none   &kp RCTRL  &kp RSHFT  &kp RIGHT_ALT  &kp RIGHT_GUI  &none
-&none  &kp N0  &kp N1  &kp N2  &kp N3  &kp DOT      &none   &none      &none      &none          &none          &none
+&none  &none   &kp N7  &kp N8  &kp N9  &kp PLUS     &none   &none      &none      &sys_reset    &bootloader   &none
+&none  &none   &kp N4  &kp N5  &kp N6  &kp MINUS    &none   &kp RCTRL  &kp RSHFT  &kp LEFT_ALT  &kp LEFT_GUI  &none
+&none  &kp N0  &kp N1  &kp N2  &kp N3  &kp DOT      &none   &none      &none      &none         &none         &none
                        &trans  &trans  &trans       &trans  &trans     &trans
             >;
         };
 
         sym_left {
             bindings = <
-&none  &kp GRAVE      &kp TILDE      &kp HASH       &kp LS(AMPS)  &kp LS(PIPE)    &none   &none      &none      &none          &none          &none
-&none  &kp LS(EXCL)   &kp LS(UNDER)  &kp LS(COLON)  &kp EQUAL     &kp LS(DLLR)    &none   &kp RCTRL  &kp RSHFT  &kp RIGHT_ALT  &kp RIGHT_GUI  &none
-&none  &kp LS(CARET)  &kp LS(QMARK)  &kp LS(STAR)   &kp LS(PLUS)  &kp BSLH        &none   &none      &none      &none          &none          &none
+&none  &kp GRAVE      &kp TILDE      &kp HASH       &kp LS(AMPS)  &kp LS(PIPE)    &none   &none      &none      &none         &none         &none
+&none  &kp LS(EXCL)   &kp LS(UNDER)  &kp LS(COLON)  &kp EQUAL     &kp LS(DLLR)    &none   &kp RCTRL  &kp RSHFT  &kp LEFT_ALT  &kp LEFT_GUI  &none
+&none  &kp LS(CARET)  &kp LS(QMARK)  &kp LS(STAR)   &kp LS(PLUS)  &kp BSLH        &none   &none      &none      &none         &none         &none
                                      &trans         &trans        &trans          &trans  &trans     &trans
             >;
         };
 
         sym_right {
             bindings = <
-&none  &none     &none     &none      &none      &none     &kp LS(PRCNT)  &paren       &brace         &bracket   &kp COMMA   &none
-&none  &kp LGUI  &kp LALT  &kp LSHFT  &kp LCTRL  &none     &kp LS(AT)     &kp SEMI     &kp LS(LT)     &kp MINUS  &kp LS(GT)  &none
-&none  &none     &none     &none      &none      &none     &kp SQT        &kp LS(DQT)  &kp LS(TILDE)  &kp FSLH   &kp DOT     &none
-                           &trans     &trans     &trans    &trans         &trans       &trans
+&none  &none     &none     &none      &none      &none     &kp LS(PRCNT)  &spec_sym RIGHT_PARENTHESIS LEFT_PARENTHESIS  &spec_sym RIGHT_BRACE LEFT_BRACE  &spec_sym RIGHT_BRACKET LEFT_BRACKET  &kp COMMA   &none
+&none  &kp LGUI  &kp LALT  &kp LSHFT  &kp LCTRL  &none     &kp LS(AT)     &kp SEMI                                      &kp LS(LT)                        &kp MINUS                             &kp LS(GT)  &none
+&none  &none     &none     &none      &none      &none     &kp SQT        &kp LS(DQT)                                   &kp LS(TILDE)                     &kp FSLH                              &kp DOT     &none
+                           &trans     &trans     &trans    &trans         &trans                                        &trans
             >;
         };
 
@@ -167,7 +177,7 @@
 &none  &none         &none         &none      &none      &none     &none           &kp LS(INS)     &kp LC(INS)   &kp LS(DEL)      &kp LC(Z)  &none
 &none  &kp LEFT_GUI  &kp LEFT_ALT  &kp LSHFT  &kp LCTRL  &none     &mmv MOVE_LEFT  &mmv MOVE_DOWN  &mmv MOVE_UP  &mmv MOVE_RIGHT  &none      &none
 &none  &none         &none         &none      &none      &none     &msc MOVE_LEFT  &msc MOVE_DOWN  &msc MOVE_UP  &msc MOVE_RIGHT  &none      &none
-                                   &trans     &trans     &trans    &mkp LCLK       &mkp RCLK       &mkp MCLK
+                                   &trans     &trans     &trans    &mkp RCLK       &mkp LCLK       &mkp MCLK
             >;
         };