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Preferences - External Control & Automation Tab

Use the External Control & Automation tab to set up and customize control surfaces. To display this tab, choose Preferences from the Options menu, then click the External Control & Automation tab.

NOTE You can connect one Mackie Control Universal (with up to four Mackie Control Universal Extenders), one Frontier TranzPort, and up to five generic MIDI controllers.

TIP The selected device isn't enabled until you select the External Control command from the Options menu.

Item	Description
Smooth and thin automation data after recording or drawing	When recording automation or drawing envelope curves, Acid software creates as many envelope points or keyframes as possible to represent your control movements. Select this check box if you want to reduce the number of envelope points/keyframes after recording/drawing is finished. NOTE Thinning is not applied to MIDI controller envelopes that you record from a hardware device.
Set controls to default values when automation is turned off	Select this check box if you want controls to return to their default values when set the track's automation recording mode to Automation Off. Automated effect parameters do not have default settings and will retain their last-set values when you turn automation off. When the check box is cleared, controls will retain their last-set values when you turn automation off.
Available devices	Choose a device from each drop-down list, and then click Add to choose the control surfaces that will be available to Acid software. Adding a device loads its default profile. For information about setting up and using a control surface, please see Using a Control Surface. For information about using a Mackie Control Universal, please see Using a Mackie Control. For information about using a Frontier TranzPort, please see Using a Frontier TranzPort. For information about using a generic control surface, please see Using a Generic Control Surface.
Active control devices	Lists the control devices that you've added. If you want to customize the behavior of the controller, double-click the device name.
Default All	Restores all control surface preferences to the default settings.