# How to add "blocks" to grapeJS builder?
**URL:** https://forum.mautic.org/t/how-to-add-blocks-to-grapejs-builder/21456
**Category:** Development
**Created:** [October 29, 2021, 8:57am UTC](https://forum.mautic.org/t/how-to-add-blocks-to-grapejs-builder/21456 "2021-10-29T08:57:43Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@kastreak](https://forum.mautic.org/u/kastreak)
#### Post date: [October 29, 2021, 8:57am UTC](https://forum.mautic.org/t/how-to-add-blocks-to-grapejs-builder/21456/1 "2021-10-29T08:57:43Z")
Hello, we have a mautic 4 installed, and started to use grapeJS builder now to be prepared when legacy builder is gone.
My dev developed us a plugin which adds a block to legacy builder - [Screenshot by Lightshot](https://prnt.sc/1xpama0) with control elements for it a bit below.
However, when we turn on grapeJS builder [Screenshot by Lightshot](https://prnt.sc/1xpar32) we don’t have it anywhere here.
Could someone please explain how we can add that custom block to grapeJS builder?
Thanks in advance!
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### Author:  [@joeyk](https://forum.mautic.org/u/joeyk)
#### Post date: [December 11, 2021, 7:57am UTC](https://forum.mautic.org/t/how-to-add-blocks-to-grapejs-builder/21456/2 "2021-12-11T07:57:29Z")
Maybe @adiux can point you in the right direction or @alexhammer .
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### Author:  [@Jorgeh](https://forum.mautic.org/u/Jorgeh)
#### Post date: [January 25, 2022, 12:08pm UTC](https://forum.mautic.org/t/how-to-add-blocks-to-grapejs-builder/21456/3 "2022-01-25T12:08:43Z")
Did you have luck with it?
I want to install a custom-code block in Grapejs plugin in Mautic 4 as well…
Any help…