1) When accessing my website through mobile, it seems that the SIGN IN page just shows a squashed version of the login/register webpage. Is it possible to have this as tabbed? So there are 2 tabs, a default tab which is the sign in, but there is also a register tab which the user can tap to then view the register option?
2) Also, as my site is live, can I set up a staging site with my current license? This is basically to test any new updates before rolling out just to make sure there are no issues.
1) My account page is default WooCommerce page and it does not have tabs there and there is no option to do this. Maybe you can implement this by additional customization. Contact wpkraken team if you need help with this because additional customization is not included in theme support.
2) Yes, you can use the same license for the 1 staging site.