How do I extend the address forms?

Aero has address forms in the checkout, account-area, and admin that can be extended.
Storefront Address Forms
The storefront address forms are address forms found on your storefront (the checkout and the account-area). These forms are customer facing and all extend 
Aero\Forms\AddressForm.
Structure
In all of the address forms there’s a 
top_sections, 
sections, and 
bottom_sectionssection (some forms have an additional section). These sections build up the form. The reason that there are sections is so when the form is in lookup mode, the address fields can be hidden as they’re all in the 
sectionssection.
Top Sections
Key
View
first_name
forms::address.fields.first-name
last_name
forms::address.fields.last-name
lookup
forms::address.lookup
Sections
Key
View
company
forms::address.fields.company
line1
forms::address.fields.line1
line2
forms::address.fields.line2
city
forms::address.fields.city
zone
forms::address.fields.zone
postcode
forms::address.fields.postcode
country
forms::address.fields.country
Bottom Sections
Key
View
phone
forms::address.fields.phone
Additional Sections
Some storefront address forms have some additional sections on top of the ones above. To adjust these sections you’d have to specifically extend the specific form class instead of the generic Aero\Forms\AddressFormclass.
Aero\Checkout\Http\Forms\CustomerAddressForm
This address form has additional customer sections.
Key
View
customer
account-area::forms.fields.address.name
Aero\AccountArea\Http\Forms\AccountAddressForm
This address form is extended by all of the other account area address forms. This form injects 2 additional things to the top and bottom sections.
The top sections has this injected right at the top of all of the top sections:
Key
View
address_name
checkout::sections.customer
The bottom sections has this injected right at the bottom of all of the bottom sections:
Key
View
is_default
account-area::forms.fields.address.is_default
Admin Address Forms
The admin address forms are address forms found on your admin. These forms all extend Aero\Admin\Http\Forms\AdminAddressForm.
Structure
The structure for the admin forms is the same as the structure for the storefront forms but the views are different.
Top Sections
Key
View
first_name
admin::forms.fields.address.first-name
last_name
admin::forms.fields.address.last-name
lookup
admin::forms.partials.address-lookup
Sections
Key
View
company
admin::forms.fields.address.company
line1
admin::forms.fields.address.line1
line2
admin::forms.fields.address.line2
city
admin::forms.fields.address.city
zone
admin::forms.fields.address.zone
postcode
admin::forms.fields.address.postcode
country
admin::forms.fields.address.country
Bottom Sections
Key
View
phone
admin::forms.fields.address.phone
Address Form Validation
All address forms take validation from Aero\Forms\Validation\AddressRules. Instead of adding rules to this class through the extendsstatic method you should make use of the **Aero\Common\Helpers\Address::addField()**method. This method accepts the same parameters as if you were extending a validator (you can learn more about that here, link). The difference is that it adds the rules but also makes your field fillable on all of the address models. These models are Aero\Account\Models\Address, Aero\Cart\Models\OrderAddress, and Aero\Fulfillment\Models\FulfillmentAddress.