Feed by mail role permissions

Hello,

im currently a premium member of your plugin and actively using the feed by mail extension (latest version).

Problem is that we would like to enable the preview for our editors too, actually its avaible only to administrators. In the general settings of the “main” plugin (newsletter) i can see there’s a select box to allow editors to use the newsletter plugin. Even when i set that to “yes” they can just see the core of the plugin but not the feed by mail settings / preview.

Is that intended or a bug?

https://wordpress.org/plugins/newsletter/