The section at the bottom of the ES2 interface provides three views, accessed by clicking the buttons on the left:
The macro parameters provide quick access to several linked, related parameters. As you alter any of the macro controls, you will see one, two, or more parameters in the ES2 interface update. For example, adjusting the Detune macro control simultaneously affects the Analog parameter and the coarse and fine oscillator Frequency parameters.
Important: The impact of each macro control is completely dependent on the parameter values of the current setting. In some patches, a number of macro controls may have no effect.
Another bonus of the macro parameters is that they are settings-compatible with ES2-based GarageBand instruments. In other words, you can use the ES2 and some GarageBand synthesizer settings interchangeably.
Clicking the MIDI button at the lower left of the interface displays the Controller Assignments. There are six menus, for Ctrl A to Ctrl F. You can use any MIDI controller shown in the menus for these control sources. See Using the ES2 Oscillators.
Click a control menu, then choose the controller name/number that you want to use from the list.
Click a control menu, then choose the -Learn- item.
Move the desired controller on your MIDI keyboard or controller.
Note: If no suitable MIDI message is received within 20 seconds, the selected control will revert to the previous value/assignment.