Toggle Address on checkout

-- url of the page with the problem -- : www.lilywest.com.au
-- HikaShop version -- : 2.6.0
-- Joomla version -- : 3.4.5

Hi,
I have an online shop with a delivery option and an option for pick up.
I would like the customer to only enter their address if they require delivery.
Is there way I can have an option to toggle the address depending which shipping option the customer requires during the registration process?

I have the checkout process as:
Register > Shipping > Payment > End

I would like the user to enter their address in the registration process if they want delivery, but have the option to select pick up and avoid entering their address.

Thanks

Great.

I just made the address details not required and added a small instruction to customers that the address is only required for delivery. Works perfectly!

thanks.