DoubleTap Hotkeys effectively double the number of possible Hotkeys available to you. Using DoubleTaps, you may assign two Macros to a single Hotkey. If you hit the Hotkey once, you get the first Macro (if one exists, otherwise the key's native function); hit it twice (within the DoubleTap delay setting described below) and get the second Macro. DoubleTaps are also supported by Mouse Button Hotkeys.

To create a DoubleTap Hotkey, simply hold down zero or more Modifiers and strike the Main Key twice in AutoHook's Hotkey field. AutoHook will prefix the hotkey with a double bar || symbol, indicating a DoubleTap.

It is not required to have a single tap Hotkey Macro in order to create a DoubleTap Macro. For example, strike the F1 key twice in AutoHook's Hotkey field. AutoHook will then display ||F1 in the Hotkey field. Next, type line{enter} in the New Macro field and click the Save Hotkey button. In AutoCAD, hitting F1 once brings up Help; hitting it twice triggers the LINE command.

This user-adjustable setting will vary based on your typing style. It determines how long AutoHook waits before sending the single tap Macro when a DoubleTap is possible. The default is 300 milliseconds (0.3 seconds), which may be too fast for some users.

A high delay makes the single tap feel laggy. A low delay might cause both taps to be interpreted as two singles. Set it as low as possible while still reliably getting the DoubleTap Macro. See Options → Program to change this setting.

When you strike a DoubleTap Hotkey twice, its Macro plays immediately—there's no delay. The delay only affects the single tap version, and only when a DoubleTap is defined for that key. Non-DoubleTap Hotkeys are always executed immediately.