# Please make the new 'Crossfader FX' toggle switch, midi assignable.

**URL:** <https://community.algoriddim.com/t/please-make-the-new-crossfader-fx-toggle-switch-midi-assignable/22820>\
**Category:** Suggestions\
**Created:** [December 10, 2023, 6:10pm UTC](https://community.algoriddim.com/t/please-make-the-new-crossfader-fx-toggle-switch-midi-assignable/22820 "2023-12-10T18:10:16Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Michael\_Wisniewski](https://community.algoriddim.com/letter_avatar_proxy/v4/letter/m/a88e4f/32.png) [@Michael\_Wisniewski](https://community.algoriddim.com/u/Michael_Wisniewski)\
**Post date:** [December 11, 2023, 7:20am UTC](https://community.algoriddim.com/t/please-make-the-new-crossfader-fx-toggle-switch-midi-assignable/22820/2 "2023-12-11T07:20:24Z")

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There is a **Toggle Crossfader FX** command. In this example, I mapped it to the [**~ `**] key.

 ![Screenshot 2023-12-11 at 3.15.50 PM](https://community-assets.algoriddim.com/original/2X/d/d30d8a63ee313ac42128c65020a4ae9bf9d3897b.png)

**MIDI** :  
I added the **Toggle Crossfader FX** command to my custom DDJ-FLX4 mapping. Unfortunately, I couldn’t add it to the built-in Algoriddim mapping. The Algoriddim mapping restricts access to both the command and the hardware button on the FLX4.

> [@DDJ-FLX4 MIDI Map (Unofficial 2.9)](https://community.algoriddim.com/t/ddj-flx4-midi-map-unofficial-2-9/22796):
>
> [DDJ-FLX4 (Unofficial2.9).djayMidiMapping](https://community.algoriddim.com/uploads/short-url/1INOT5eScChcsl77DzxleY0LR3z.djayMidiMa) (79.9 KB) mapped Smart Fader button to use the Toggle Crossfader FX command. Notes: unfortunately the built-in FLX4 Algoriddim mapping restricts users from accessing the Toggle Crossfader FX command and the physical Smart Fader button on the FLX4.

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_[View the full topic](https://community.algoriddim.com/t/please-make-the-new-crossfader-fx-toggle-switch-midi-assignable/22820)._