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The other push buttons can be used to operate another opener and/or light control product. The 33LM 3-Button Remote Control Remote control can also be used with a 423LM 3-channel receiver and a 3-button door control to operate a commercial door opener in open, close, and stop mode (as explained on side 2). To match or change the code in the remote control Locate the code switches in both the new and the original remote controls. The new remote control’s code switches can be found by sliding the