Hello,

1) You can change the shop catalog display from Appearance >> Customize >> Woocommerce >> Product Catalog.

Screenshot for Clarification: https://ibb.co/VtwYpJX

2) You can apply for specific category you can read our detailed documentation for help:
https://xtemos.com/docs/woodmart/theme-settings-presets/

3) You can set the single product header from Theme Settings >> Single Product.

Screenshot for Clarification: https://gyazo.com/0107241eafa9e91028d36e77c709c1d6

Note: It is not possible to add a shop page like the header on a Single product.

Best Regards