Can I add multiple conditions for an action in one rule while using your plugin?

Yes, you can. While using the Conditional Payments for WooCommerce plugin, you can enable as many conditions (related to the billing address, shipping address, products in the cart, product categories, product quantity, cart weight, cart subtotal, user roles, users, billing email, and more) for a Payments Rule as you prefer. Also, if required for your online shop, you can have more than one conditional payments rule active on your store.