# Crossfader auto-cut / auto-scratch MIDI Mapping **URL:** \ **Category:** Suggestions\ **Tags:** macOS, iOS\ **Created:** [September 24, 2026, 1:24pm UTC](https://community.algoriddim.com/t/crossfader-auto-cut-auto-scratch-midi-mapping/43321 "2026-09-24T13:24:51Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Dj\_Los\_Inthemix](https://community.algoriddim.com/user_avatar/community.algoriddim.com/dj_los_inthemix/32/4394_2.png) [@Dj\_Los\_Inthemix](https://community.algoriddim.com/u/Dj_Los_Inthemix)\ **Post date:** [September 24, 2026, 1:24pm UTC](https://community.algoriddim.com/t/crossfader-auto-cut-auto-scratch-midi-mapping/43321/1 "2026-09-24T13:24:51Z")
**NOTE: Please use the search function above before posting to avoid creating duplicate topics.** - **Please also consider sharing a short video or screenshots to help clarify your suggestion** YOUR SUGGESTION: 1. In mapping a controller when used to use a keyboard there was a cut crossfader button and a fast cutting button. Could these be added to map to a controller? I am using the RS1 and i usually customize the button i dont use as much, thank you ---
**Author:** ![Slak\_Jaw](https://community.algoriddim.com/user_avatar/community.algoriddim.com/slak_jaw/32/6517_2.png) [@Slak\_Jaw](https://community.algoriddim.com/u/Slak_Jaw)\ **Post date:** [September 24, 2026, 8:11pm UTC](https://community.algoriddim.com/t/crossfader-auto-cut-auto-scratch-midi-mapping/43321/2 "2026-09-24T20:11:29Z")
Hi @Dj_Los_Inthemix, 1. On iOS you can achieve the **auto-cut / auto-scratch** by touching 2 fingers on the waveform and moving them back and forth. 2. On macOS **holding the G key** on the keyboard performs auto-cut and **holding the F key** performs a faster auto-cut. 3. On controllers where this is supported, if you MIDI map a button with **Target→General** and **Action→Controller Shift Key** , then holding this button while moving jogwheel should auto-cut. 4. In your case, with the RS1, this may not won’t work because it is an External Mixer Mode device. Please give these a try and let me know though. ---
**Author:** ![Slak\_Jaw](https://community.algoriddim.com/user_avatar/community.algoriddim.com/slak_jaw/32/6517_2.png) [@Slak\_Jaw](https://community.algoriddim.com/u/Slak_Jaw)\ **Post date:** [October 1, 2026, 2:31pm UTC](https://community.algoriddim.com/t/crossfader-auto-cut-auto-scratch-midi-mapping/43321/4 "2026-10-01T14:31:53Z")
Hello! It’s been a week since my last reply. I’m going to consider this topic completed for now so I can focus on others. However, please feel free to respond and we can definitely revisit this. Thanks! ---
**Author:** ![Dj\_Los\_Inthemix](https://community.algoriddim.com/user_avatar/community.algoriddim.com/dj_los_inthemix/32/4394_2.png) [@Dj\_Los\_Inthemix](https://community.algoriddim.com/u/Dj_Los_Inthemix)\ **Post date:** [October 3, 2026, 11:01pm UTC](https://community.algoriddim.com/t/crossfader-auto-cut-auto-scratch-midi-mapping/43321/6 "2026-10-03T23:01:44Z")
I tried mapping to internal mode and most of everything is working just like external mode. except when i move the crossfader completely over one deck cuts out.. other than that its nearly the same with a mappable cut button, instead of using the cross fader, i hope you understand what i meant, i attached some videos ![IMG_20261004_172201](https://community-assets.algoriddim.com/original/3X/f/8/f8eda8c43b1a5e0d1adf037781783247ecbb676a.jpeg) ---
**Author:** ![Slak\_Jaw](https://community.algoriddim.com/user_avatar/community.algoriddim.com/slak_jaw/32/6517_2.png) [@Slak\_Jaw](https://community.algoriddim.com/u/Slak_Jaw)\ **Post date:** [October 4, 2026, 9:52pm UTC](https://community.algoriddim.com/t/crossfader-auto-cut-auto-scratch-midi-mapping/43321/7 "2026-10-04T21:52:09Z")
Hi @Dj_Los_Inthemix, the RS1 is an External Mixer Mode only device. I do not recommend setting the Audio to Internal Mixer Mode. ---
**Author:** ![Dj\_Los\_Inthemix](https://community.algoriddim.com/user_avatar/community.algoriddim.com/dj_los_inthemix/32/4394_2.png) [@Dj\_Los\_Inthemix](https://community.algoriddim.com/u/Dj_Los_Inthemix)\ **Post date:** [October 4, 2026, 10:25pm UTC](https://community.algoriddim.com/t/crossfader-auto-cut-auto-scratch-midi-mapping/43321/8 "2026-10-04T22:25:55Z")
it works perfectly with these settings.. even fixed the crossfader issues…I dont know much about the programming part of it, maybe you can help reach the outcome that im trying to achieve, thank you ---
**Author:** ![Slak\_Jaw](https://community.algoriddim.com/user_avatar/community.algoriddim.com/slak_jaw/32/6517_2.png) [@Slak\_Jaw](https://community.algoriddim.com/u/Slak_Jaw)\ **Post date:** [October 4, 2026, 11:08pm UTC](https://community.algoriddim.com/t/crossfader-auto-cut-auto-scratch-midi-mapping/43321/9 "2026-10-04T23:08:15Z")
That’s great to hear @Dj_Los_Inthemix. If by “programming” you mean MIDI Mapping, we have a dedicated section for this in the user manuals. > **[MIDI mapping | Algoriddim Support](https://help.algoriddim.com/user-manual/djay-ios/midi)**