Hello,
The shop page is a functional page and it is not editable. You can find the option to configure the shop page in the Theme Settings > Shop page. Besides each page has its own settings, please check this instruction: https://xtemos.com/docs/woodmart/options-for-pages/
As for the sticky filter in the bottom, you need to enable the filter in the Theme Settings > Shop page > Sidebar and titles and then enable the Mobile button navbar in the Theme Settings > General > Mobile button navbar.
Best Regards
.
