It seems the plus addons has no option for a woocommerce login/register which i find hard to believe as there are millions of us that use woocommerce.
This page is part of woocommerce and as yet this can only be minipulated via php.
Please think about millions of users you could help ,who would like to show this very very important page the way we want login/register in many ways.
1.switcher login /register
2.pop up
3. side bar
4. add custom field vendor , host, experts etc...
5. add images , video maybe
6. only for vendors. or wholsale
7. plus many more...