Let's take a look at the exposed variables of the currentUser property by clicking on the **[inspector](/docs/app-builder/left-sidebar/#inspector)** icon on the left sidebar:
- **email** : The value can accessed using `{{globals.currentUser.email}}`
- **firstName** : The value can accessed using `{{globals.currentUser.firstName}}`
- **lastName** : The value can accessed using `{{globals.currentUser.lastName}}`
- **groups**: The `groups` attribute is an array representing the groups a user belongs to. By default, every user, including admins, is part of the `all_users` group. Additionally, admins are also part of the `admin` group. To access a specific group name, you need to specify the array index, such as `[0]` for the first group, `[1]` for the second, and so on. For example, you can retrieve the name of the second group a user belongs to with `{{globals.currentUser.groups[1]}}`.
<imgclassName="screenshot-full"src="/img/how-to/access-currentuser/button.png"alt="Properties of button"/>
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- Configure the Disable field with a condition that checks the user's group membership. If the user is not an admin, as determined by the absence of the admin value in the first position (index [1]) of the groups array, the field should be disabled. Use the following JavaScript condition for this purpose: