+## Configuration
+
+By default Space Cadet assumes a US ANSI layout, but if your layout uses different keys for parentheses, you can redefine them in your `config.h`. In addition, you can redefine the modifier to send on tap, or even send no modifier at all. The new configuration defines bundle all options up into a single define of 3 key codes in this order: the `Modifier` when held or when used with other keys, the `Tap Modifer` sent when tapped (no modifier if `KC_TRNS`), finally the `Keycode` sent when tapped. Now keep in mind, mods from other keys will still apply to the `Keycode` if say `KC_RSFT` is held while tapping `KC_LSPO` key with `KC_TRNS` as the `Tap Modifer`.
+
+|Define |Default |Description |
+|----------------|-------------------------------|---------------------------------------------------------------------------------|
+|`LSPO_KEYS` |`KC_LSFT, LSPO_MOD, LSPO_KEY` |Send `KC_LSFT` when held, the mod and key defined by `LSPO_MOD` and `LSPO_KEY`. |
+|`RSPC_KEYS` |`KC_RSFT, RSPC_MOD, RSPC_KEY` |Send `KC_RSFT` when held, the mod and key defined by `RSPC_MOD` and `RSPC_KEY`. |
+|`LCPO_KEYS` |`KC_LCTL, KC_LSFT, KC_9` |Send `KC_LCTL` when held, the mod `KC_LSFT` with the key `KC_9` when tapped. |
+|`RCPC_KEYS` |`KC_RCTL, KC_RSFT, KC_0` |Send `KC_RCTL` when held, the mod `KC_RSFT` with the key `KC_0` when tapped. |
+|`LAPO_KEYS` |`KC_LALT, KC_LSFT, KC_9` |Send `KC_LALT` when held, the mod `KC_LSFT` with the key `KC_9` when tapped. |
+|`RAPC_KEYS` |`KC_RALT, KC_RSFT, KC_0` |Send `KC_RALT` when held, the mod `KC_RSFT` with the key `KC_0` when tapped. |
+|`SFTENT_KEYS` |`KC_RSFT, KC_TRNS, SFTENT_KEY` |Send `KC_RSFT` when held, no mod with the key `SFTENT_KEY` when tapped. |
+|`SPACE_CADET_MODIFIER_CARRYOVER` |*Not defined* |Store current modifiers before the hold mod is pressed and use them with the tap mod and keycode. Useful for when you frequently release a modifier before triggering Space Cadet. |
+
+
+## Obsolete Configuration
+
+These defines are used in the above defines internally to support backwards compatibility, so you may continue to use them, however the above defines open up a larger range of flexibility than before. As an example, say you want to not send any modifier when you tap just `KC_LSPO`, with the old defines you had an all or nothing choice of using the `DISABLE_SPACE_CADET_MODIFIER` define. Now you can define that key as: `#define LSPO_KEYS KC_LSFT, KC_TRNS, KC_9`. This tells the system to set Left Shift if held or used with other keys, then on tap send no modifier (transparent) with the `KC_9`.
+
+|Define |Default |Description |
+|------------------------------|-------------|------------------------------------------------------------------|
+|`LSPO_KEY` |`KC_9` |The keycode to send when Left Shift is tapped |
+|`RSPC_KEY` |`KC_0` |The keycode to send when Right Shift is tapped |
+|`LSPO_MOD` |`KC_LSFT` |The modifier to apply to `LSPO_KEY` |
+|`RSPC_MOD` |`KC_RSFT` |The modifier to apply to `RSPC_KEY` |
+|`SFTENT_KEY` |`KC_ENT` |The keycode to send when the Shift key is tapped |
+|`DISABLE_SPACE_CADET_MODIFIER`|*Not defined*|If defined, prevent the Space Cadet from applying a modifier |