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# Multi Engage/Bypass Message Type

# Overview
The **Multi Engage/Bypass** feature lets you map Engage and Bypass CC messages to each of your devices. This then allows you to use a single Multi Engage/Bypass message to set the bypass states of all your devices at once. 🎥 [Video tutorial](https://youtu.be/Qeo-U3drhLE?si=9RRFNZen1i8S2sg9) also available.


# MIDI Channel Settings
To map your device's Engage/Bypass functions, go to the `Edit MIDI Channel Settings` under the `Controller Settings` tab. You'll see that for each MIDI Channel, you can set the CC number and value for Engage and Bypass.


![](https://storage.crisp.chat/users/helpdesk/website/-/e/8/b/d/e8bd1d589d920800/image_3jp0uv.png)

For example, if I had my Timeline on MIDI Channel 1, I will set my Engage message to CC#102 value 127, and my Bypass message to CC#102 value 0, as per their MIDI implementation

![](https://storage.crisp.chat/users/helpdesk/website/-/e/8/b/d/e8bd1d589d920800/image_15g5wkz.png)


# Multi Engage/Bypass message type
Go to your preset settings and look for the Device Engage/Bypass message type:
![](https://storage.crisp.chat/users/helpdesk/website/-/e/8/b/d/e8bd1d589d920800/image_13bjc2q.png)
There are 3 options under Type, which are `Engage`, `Bypass` and `Set`

### Engage
Mapped `Engage` CC messages will be sent to checkmarked devices. Unchecked devices will be unaffected.

### Bypass
Mapped `Bypass` CC messages will be sent to checkmarked devices. Unchecked devices will be unaffected.

### Set
Mapped `Engage` and `Bypass` messages will be sent simultaneously. If a device is checkmarked, its `Engage` CC message will be sent to it. If left unchecked, its `Bypass` CC message will be sent to it. If the `Engage` or `Bypass` feature is not enabled for a particular MIDI channel then nothing will be sent for that channel's device.


# Controlling More than One Pair of Engage/Bypass Messages for a Single Device
Some devices may have more than one effect, and you may want to control each effect individually with the Multi Engage/Bypass message. For example the Strymon Flint with Reverb and Tremolo sides, or Strymon Sunset with A and B sides. 

You can remap an unused MIDI channel to function as the second effect your device. For example if you wanted to independently control both Reverb and Tremolo sides on the Strymon Flint (that has been set to MIDI channel 1), you can remap MIDI channel 2 to channel 1 (under MIDI Channel Settings). That way you can use 2 slots on the Multi Engage/Bypass message for each effect on the Flint.