ISO option for short code or custom codes to pull guest details

It would be really nice if you could offer an iso option for short codes or allow us to create custom codes of our own based on details from the guests booking. Some reasons for this are preference in message formatting or for auto-filling forms where spaces or commas kill the url code. %check_in_iso% and %check_out_iso% would be very helpful along with a way to remove a space in between first and last name for %guest_full_name% for example.