The Combo feature is a chording type solution for adding custom actions. It lets you hit multiple keys at once and produce a different effect. For instance, hitting `A` and `S` within the combo term would hit `ESC` instead, or have it perform even more complex tasks.
Please see [Key Overrides](https://docs.qmk.fm/#/feature_key_overrides?id=difference-to-combos) for multiple keys modifiers like shift.
Please see [Key Overrides](https://docs.qmk.fm/#/feature_key_overrides?id=difference-to-combos) for multiple keys with modifiers like shift.
To enable this feature, you need to add `COMBO_ENABLE = yes` to your `rules.mk`.