# Editing mouse keys while using Chrysalis
**URL:** https://community.keyboard.io/t/editing-mouse-keys-while-using-chrysalis/2956
**Category:** Programming
**Created:** [June 17, 2019, 12:01am UTC](https://community.keyboard.io/t/editing-mouse-keys-while-using-chrysalis/2956 "2019-06-17T00:01:37Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@caleb.delon](https://community.keyboard.io/u/caleb.delon)
#### Post date: [June 17, 2019, 12:01am UTC](https://community.keyboard.io/t/editing-mouse-keys-while-using-chrysalis/2956/1 "2019-06-17T00:01:37Z")
I use Chrysalis to set my keyboard layout instead of Arduino. Now I want to edit the acceleration of the mouse keys—it starts off super slow and takes about 3 seconds to get up to speed. But I don’t think there’s a way in Chrysalis to edit the mouse. Any suggestions?
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### Author:  [@algernon](https://community.keyboard.io/u/algernon)
#### Post date: [June 19, 2019, 6:31am UTC](https://community.keyboard.io/t/editing-mouse-keys-while-using-chrysalis/2956/2 "2019-06-19T06:31:31Z")
Configuring the acceleration speed is not something Chrysalis supports at this time (there are plans, but it will be a while 'till we get there). For now, the only solution is to compile your own firmware: you can still use custom firmware with Chrysalis, so you can take the default one, adjust the mouse speeds, and continue using Chrysalis.
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### Author:  [@SeoSpeedwagon](https://community.keyboard.io/u/SeoSpeedwagon)
#### Post date: [May 9, 2021, 1:11am UTC](https://community.keyboard.io/t/editing-mouse-keys-while-using-chrysalis/2956/3 "2021-05-09T01:11:56Z")
Any ETA on this coming to Chrysalis? Would love to tweak the mouse acceleration with Chrysalis
Until then, how does one adjust the mouse speed with custom firmware and then make sure that Chrysalis can continue to edit the other keys?