Membership Packages Hidden Option

There is a hidden option for the Per Listing Packages, and which is great.

But, there is no hidden option for the membership packages.

I got some clients want to submit several listings, so I want to design a membership package specific for these clients for a deep discount.

So, the admin will assign the hidden membership package to the user in the admin backend.

The user will pay the site owner by agreement and via other payment method.

I think this hidden membership package will be very useful for the coupon theme as well.

Does any one think this feature should be added?