Hi !
Both sign_up_button and sign_in_button are currently private to module Os_user_view.
I think it would be valuable to add their signature in os_user_view.eliomi file so that one can change the location of those buttons or add them else where. It is quite common to have several time the same button in a landing page (eventually after a plan choice).
(Of course one can still overwrite Os_user_view module for now)
What do you think about it ?
Best !