Our testing on 4.7.9 is showing that eWay is not letting the auto-renew options show on the Membership settings tab on a Contribution page configuration.
The wiki says eWay's 'recurring contributions / auto-renew memberships' is currently "Code written but needs further customisation, see work in progress" which links here which then sends you on to here and also directs you straight to the extension
Having enabled this extension (v 1.1) on the site, the auto-renew options remain unavailable on the contribution settings page.
Currently we have one page that offers PayPal and PayLater and the auto-renew options are available in the config, and show on the page. But an equivalent page that has PayPal+PayLater+eWay does not give us the options we need.