Interface Fader lets you fade any interface object in and out. You can copy and paste Interface Fader to any Max 5 patch. Here is how it works:
Step 1. Open patch
Step 2. Put your fading interface elements behind the white panel. You can use Get Info to change the color of the panel so that it matches your background. Send interface items to Back or bring panel to Front. Note that for some reason, connections can’t be hidden by sending them to Back. You can therefore hide them using Apple K.
Step 3. Lock patch and press On / Off to fade elements in and out. (See video below for demonstration)