# "Spotlight Arc System"?
**URL:** https://vistaforum.chroma-q.com/t/spotlight-arc-system/979
**Category:** How do I ...?
**Created:** [August 14, 2019, 10:21am UTC](https://vistaforum.chroma-q.com/t/spotlight-arc-system/979 "2019-08-14T10:21:26Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@kmlpclux](https://vistaforum.chroma-q.com/u/kmlpclux)
#### Post date: [August 14, 2019, 10:21am UTC](https://vistaforum.chroma-q.com/t/spotlight-arc-system/979/1 "2019-08-14T10:21:26Z")
We are currently considering/evaluating visualizers to be used for our Vista3 programming offline. I have run across a demo setup which includes “Spotlight Arc System (16 bit 7 ch)”. This is apparently not a lamp, but an Automated Remote Control for other fixtures (I stumbled across a YouTube video which I think may be talking about it):
It seems you would need to patch some channels in Vista for the control and others for its fixture. Is it possible to define/handle such an arrangement in Vista3?
Maybe this is similar to “Motor Yoke 3 basic” (Lighting Innovation) which I’ve also seen?
Thanks.
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### Author:  [@ben.coleman](https://vistaforum.chroma-q.com/u/ben.coleman)
#### Post date: [August 14, 2019, 12:50pm UTC](https://vistaforum.chroma-q.com/t/spotlight-arc-system/979/2 "2019-08-14T12:50:15Z")
Yes, this is something that would either require two separate fixture profiles or a custom profile that contain the yoke and the fixture that you were to add to the yoke.
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### Author:  [@kmlpclux](https://vistaforum.chroma-q.com/u/kmlpclux)
#### Post date: [August 14, 2019, 1:59pm UTC](https://vistaforum.chroma-q.com/t/spotlight-arc-system/979/3 "2019-08-14T13:59:45Z")
@ben.coleman Just for fun I tried mapping 7 dimmers to one of the unknown fixtures and played with the values. The visualizer demo seems to act logically.
1=pan hi, 2=pan lo, 3=tilt hi, 4=tilt lo, 5=(no effect), 6=(no effect), 7=intensity
I suppose I could create a custom profile from that. Might try.
Update: Custom definition worked. (Fixture editor crashed on first try…)