# Routing issues external VSTs - Ableton **URL:** \ **Category:** Scaler 2 Support\ **Tags:** Mac\ **Created:** [March 13, 2023, 3:24pm UTC](https://forum.scalermusic.com/t/routing-issues-external-vsts-ableton/13184 "2023-03-13T15:24:18Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![HomeroEspinosa](https://avatars.discourse-cdn.com/v4/letter/h/58956e/32.png) [@HomeroEspinosa](https://forum.scalermusic.com/u/HomeroEspinosa)\ **Post date:** [March 13, 2023, 3:24pm UTC](https://forum.scalermusic.com/t/routing-issues-external-vsts-ableton/13184/1 "2023-03-13T15:24:18Z")
Hi folks! Love the app, but I’m having issues routing the midi out of Scaler2 into a midi track. It used to work but I can’t find the option in the dropdown menu under the pre/post. See screenshot. Any help would be much appreciated. I’m on a Mac, operating Monterey using Ableton 11 Standard. ![Screen Shot 2023-03-12 at 12.40.59 PM](https://canada1.discourse-cdn.com/flex012/uploads/scalermusic/original/2X/9/95b0e0c45ea72522dd61c99db3813626abb1e6cd.png) ---
**Author:** ![panda](https://avatars.discourse-cdn.com/v4/letter/p/71c47a/32.png) [@panda](https://forum.scalermusic.com/u/panda)\ **Post date:** [March 13, 2023, 3:43pm UTC](https://forum.scalermusic.com/t/routing-issues-external-vsts-ableton/13184/2 "2023-03-13T15:43:00Z")
This is odd. Just tried it using Ableton 11, Scaler 2.7.3 (but on Win 10) and it is as normal… ![scaler](https://canada1.discourse-cdn.com/flex012/uploads/scalermusic/original/2X/4/46ff7a34e0fe89a24b3262e757c8d27c4e5ecf55.jpeg) ---
**Author:** ![HomeroEspinosa](https://avatars.discourse-cdn.com/v4/letter/h/58956e/32.png) [@HomeroEspinosa](https://forum.scalermusic.com/u/HomeroEspinosa)\ **Post date:** [March 13, 2023, 5:16pm UTC](https://forum.scalermusic.com/t/routing-issues-external-vsts-ableton/13184/3 "2023-03-13T17:16:17Z")
Yeah, that’s weird. It’s not giving me the option for the second pulldown menu - only pre and post. Hopefully, someone on here has a fix. ---
**Author:** ![jamieh](https://yyz2.discourse-cdn.com/flex012/user_avatar/forum.scalermusic.com/jamieh/32/1139_2.png) [@jamieh](https://forum.scalermusic.com/u/jamieh)\ **Post date:** [March 13, 2023, 5:35pm UTC](https://forum.scalermusic.com/t/routing-issues-external-vsts-ableton/13184/4 "2023-03-13T17:35:44Z")
> [@HomeroEspinosa](#): > > It used to work but I can’t find the option in the dropdown menu under the pre/post What changed? Did you upgrade something? When did it change? ---
**Author:** ![panda](https://avatars.discourse-cdn.com/v4/letter/p/71c47a/32.png) [@panda](https://forum.scalermusic.com/u/panda)\ **Post date:** [March 13, 2023, 6:45pm UTC](https://forum.scalermusic.com/t/routing-issues-external-vsts-ableton/13184/5 "2023-03-13T18:45:32Z")
> [@HomeroEspinosa](#): > > option for the second pulldown menu Just for clarification, in your first post you said “option in the dropdown menu under the pre/post” (as I expected), but here you mention “a second drop down”. I guess you means as the first post - it’s the third item on the drop down - there is only one, as shown here … ![scaler](https://canada1.discourse-cdn.com/flex012/uploads/scalermusic/original/2X/0/0134f741df1c1f23e2b4ebc4187b2a5ebc649f5c.jpeg) Whatever, it must be some combination with your system that’s causing the issue. ---
**Author:** ![panda](https://avatars.discourse-cdn.com/v4/letter/p/71c47a/32.png) [@panda](https://forum.scalermusic.com/u/panda)\ **Post date:** [March 13, 2023, 7:29pm UTC](https://forum.scalermusic.com/t/routing-issues-external-vsts-ableton/13184/6 "2023-03-13T19:29:37Z")
Ah, I was being dumb. I didn’t read your post properly. I suddenly realised that there was no fader on the track (and hence no instrument), and therefore you wanted to route MIDI arriving on the track. The (hard to read) label I think said ‘Unitor’, so I’m guessing that this is something like a Unitor 8 multiport interface, and that will on send the MIDI to some VST hosted in another device. I’ve emulated that setup, I think. It now is as under ![c1](https://canada1.discourse-cdn.com/flex012/uploads/scalermusic/original/2X/5/5b63579ad580862655e5ddbef1a2285d15bcb5dd.jpeg) Here I have an external MIDI port (lm p6) and have routed the track MIDI to that. Now when I play scaler you can see the MIDI from Scaler on the track indicator. Then I set up another host (Cantabile - [https://www.cantabilesoftware.com/](https://www.cantabilesoftware.com/)) and added port ‘test lmp6 (delete)’ to it, and routed the output to an instance of a DUNE 3 synth, I then called up a midi monitor on the input link. the clip shows this, together with the received MIDI ![c2](https://canada1.discourse-cdn.com/flex012/uploads/scalermusic/original/2X/a/a12d23ad95e8ef3474933bd48939886c2f3ff256.jpeg) If this is what you were trying to achieve then it works ok, as as you see Scaler is picked up in live as expected. So I think the area to examine is the set of of the remote port in the Live options (mine looks like this ![c3](https://canada1.discourse-cdn.com/flex012/uploads/scalermusic/original/2X/4/4b5cad74395c011f7e379f38adda55918be558b6.jpeg) and then check the Unitor settings. It looks like the title is greyed out so there could be an issue there. So I think what you want to do is fine, but some box is not ticked, or a bad setting on the MIDI interface. Hope this helps … ---
**Author:** ![HomeroEspinosa](https://avatars.discourse-cdn.com/v4/letter/h/58956e/32.png) [@HomeroEspinosa](https://forum.scalermusic.com/u/HomeroEspinosa)\ **Post date:** [March 14, 2023, 3:56pm UTC](https://forum.scalermusic.com/t/routing-issues-external-vsts-ableton/13184/7 "2023-03-14T15:56:07Z")
Thank you! This is super helpful. I’m going to try this when I get to the studio this evening. ---
**Author:** ![iggy\_ogg](https://avatars.discourse-cdn.com/v4/letter/i/51bf81/32.png) [@iggy\_ogg](https://forum.scalermusic.com/u/iggy_ogg)\ **Post date:** [April 3, 2023, 8:28am UTC](https://forum.scalermusic.com/t/routing-issues-external-vsts-ableton/13184/8 "2023-04-03T08:28:22Z")
I have the same issue as the original poster. I’m on a Mac too, operating Monterey using Ableton 11 Suite. this was the issue: [Scaler Audio Unit (AU) does not provide input for external VST in Ableton Live](https://forum.scalermusic.com/t/scaler-audio-unit-au-does-not-provide-input-for-external-vst-in-ableton-live/12833)