"Nice Try" Message When Accessing Subscriptions and Settings

I am using another plugin called "Admin Menu Editor" to allow Editors to access the settings and subscriptions pages for the Subscribe by Email plugin. When I change the permissions on the menu, the "Nice Try" page displays. Is there a way to make these pages available to non-admins?

Can I revise the following code and just change 'manage_options' to another role that editors do have access to? If so, what implications will this have. I am sure this code is here for another reason.

Line 1014-1016:
if(!current_user_can('manage_options')) {
echo "<p>" . __('Nice Try...') . "</p>"; //If accessed properly, this message doesn't appear.