Group is (optionally) used when the Event is set to Up/down checked and ensures that only one key of the Group is down at a time. Groups already defined in the project are listed in the drop down list.

Wnd name is the window title to which the message must be send. Wnd class is the window class name. If the Wnd name is filled, the Wnd class can be left blank, and opposite. The Wnd name and Wnd class dropdown list display the windows title and class of all currently running applications.

Message is the message to send. It can be a integer value or a message name registered using the RegisterWindowMessage API. Messages already used in the project are listed in the dropdown list.

Event defines when the message must be fired.

• Up/Down: Down when the key is pressed, up when it is released.
• Up/Down (Checked): Down when the key is pressed. Up when pressed for the second time.
• N Click event: Count how many time the key was pressed and fire when idle for a certain time.
• Up only: Fire only once when the key is released.
• Down only: Fire only once when the key is pressed.

Value is the key identifier. This can be any value.