Second and third level TLD selling

[Remitur]

A number of TLDs manage the selling also of their second- and thirdl-level subdomains...

i.e:

.name
You can register whateveryouwant.name, but also john.smith.name ... and the TLD will be  .smith.name (and so for thousands of different surnames)

.cn
You can register whateveryouwant.cn, but also whateveryouwant.hi.cn (if your activity is related to the Hainan region... and so for thirty or so different second-level extensions

.it
For every state and every municipality in Italy, it's available the registration of corresponding 3th or even 4th level...
So you can register, i.e.:
whateveryouwant.roma.it
whateveryouwant.vinci. fi.it
and so of, with THOUSANDS of different extensions, all of them managed by the Registry.

I found no way to manage this kind of extensions in WHMCS, because for each different extension you would be requested to:

• specificy it in "domain pricing" (so not only .it, but thousands of different rows, one for each different available sub-extendion )
• duplicate custom fields (if any) for each different available sub-extension (thousand of them...)
• duplicate whois setting for each different available sub-extension (thousand of them...)

It would be nice if WHMCS could manage a "wildcard extension", so specifying   .*.it it would manage all the third- or fourth-level sub-extension, but found absolutely no way to do it.

Any trick or idea or walkaround to do it? Or starting a feature request, hoping that maybe in year 2035 ... ?

(note: whois request are managed by Registry in the right way, so it's not an issue that WHMCS is required to manage... )