Enable “Clear REST cache” button for custom user group

Hi there,

On my WordPress site I created a custom user group for which I want to enable the “Clear REST cache” button in the admin bar. Users of the group should be able to clear the REST cache but not to make any changes to the plugin config.

Currently, this only works when I give the user group the manage_options capability. Is there a way to show the admin bar menu item and allow cache purging without adding the manage_options capability?

Thanks in advance for your help!