> For the complete documentation index, see [llms.txt](https://zanflow-app.gitbook.io/zanflow-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://zanflow-app.gitbook.io/zanflow-docs/process/display-rules.md).

# Display Rules

## What is a Display rule?

You can customize the form to show or hide fields based on the stage. You can also make a field editable or read-only.

## Configuring permissions for fields

The field names are listed on the left side. You can set the permissions by clicking on any one of the options.

There are three permission settings:

* **Editable** - User can add or edit values in a field.
* **Mandatory**- User cannot submit the form without filling the field.
* **Read-only** - Field values are visible, but cannot be changed.
* **Hidden** - Fields are not displayed.