Hello,
01. Try to use the theme preset feature of our theme for a single product page and disable the buy now button in theme settings: https://ibb.co/DfJtKFPX
Here is our documentation on how to use theme presets. https://xtemos.com/docs-topic/theme-settings-presets/
02. In order to create a custom label, navigate to Products > Attributes > create attribute > then add terms to the created attribute – https://prnt.sc/tqzG6kgJCwEQ, https://prnt.sc/yq_ZcONu22_n
Edit the attribute itself – https://prnt.sc/ExOeF6K7T_U3 and enable the Show attribute label on products option – https://prnt.sc/7vckb4xRhteN
Edit the product for which you want to show the custom label and assign that custom label attribute to the product – https://prnt.sc/QGfKsahh3O9a
As a result, the custom label will be shown. https://prnt.sc/Oepo-lw1A_l7
For more details, follow this guide: https://xtemos.com/docs-topic/product-labels/
Best Regards,