Hmm...we can't find this setting yet, but we'll keep checking. Feel free to contact us for help.
Looks like you're signed in with a Gmail account. Please try again with your account that you use to access Google Admin.
Setting the policy lets you set a list of URL patterns that specify the sites that can open pop-ups.
Leaving the policy unset means DefaultPopupsSetting applies for all sites, if it's set. If not, the user's personal setting applies.
For detailed information on valid url patterns, please see https://cloud.google.com/docs/chrome-enterprise/policies/url-patterns. Wildcards, *, are allowed.