Ok - so, there are 3 steps to effect presets: setting up the effect, saving the preset, and triggering a preset. 1) Setting up the effect: Hopefully you've already figured out how to apply an effect to a video. If you want to follow through an example with me, then set up an effect on the left channel - for simplicity I'd recommend the Invert effect. 2) Saving the preset: Now, open the Preset window, and make sure you're on the Effects tab of that window. At the very bottom of this window is a control that reads "A B Mid. Safe Actv.". This control sets the target of the Preset. A corresponds to the left channel, B to the right Channel, Mid. to the center/output channel, Safe corresponds to whichever channel isn't displayed, and Actv. to the currently displayed (i.e. active) channel. In this example we are using the left channel, so this control should be set to A. In the middle of the Preset window is a list of your presets that is probably filled with 12 entries that read "Empty". For this example, select the top item in this list. Now push the Save button (the Disk icon beside the Trash icon below the preset list). In this exampe the text of the preset item should change from "Empty" to "Invert". You've now saved your effect as a preset. 3) Triggering a preset: There are two ways to trigger a preset. The most common way is to use the buttons (1 to 12) on the left side of the Preset window. You can MIDI map these buttons to a MIDI controller. You can also map a MIDI slider/knob to the preset list and use that to scroll through presets. For this example, we will now trigger the "Invert" preset on the right channel. To do this, select B on the preset target control (the control at the bottom of the Preset window). Now push the button "1" to the left of the "Invert" presets. The preset should now be loaded onto the right channel of MixEmergency. And that's it! One last note - the control at the top of the Preset window (that reads 1 to 6) is the Bank selector. You can use this to navigate through the 6 pages of 12 presets.