Hi Denis,

Welcome to our forum!

What do you want to do with grid?

Do you want to add new grid editors?

It is recommended that you define custom editors in a package.manifest file (not in the config file) like so:

{
    "gridEditors": 
    [
        {
            "name": "Rich text editor",
            "alias": "rte",
            "view": "rte",
            "icon": "icon-article"
        }
    ]
}

The package manifest should be placed in a folder inside the /App_Plugins/ folder. You can define as many grid editors you want and it can be done over multiple manifests so you can use grid editors from packages etc.

Read more:

https://our.umbraco.org/documentation/getting-started/backoffice/property-editors/built-in-property-editors/grid-layout/grid-editors

Thanks,

Oleksandr