The column designer allows you to create column designs using the https://developer.microsoft.com/json-schemas/sp/v2/column-formatting.schema.json schema.
- 1.Drag and drop an element into a column and start designing.
- 2.Once you are satisfied with the design.
- 3.Click publish and all columns will be published with one click.
To add or remove columns click the [+] sign for a menu. You may also click "Project Settings" and pick the required columns.