When you want to sell items in multipacks or bundling, but also want to see the prices from each component. You can create a new product with a standard type and then you can input the product components inside.
Follow these steps below to create a product standard type with components:
Step 1. Go to the Products menu, search for the product and click the Variant, click Edit, click Tab Component, click Icon (+) to add components in standard products, then click the Submit button to save.

Step 2. Product display when input on the sell menu

Step 3. The stock from each product will be deducted after making a sales transactions
Product initial stock

Product stock after making a sale will be automatically deducted from each product

You might also like to read these articles below:
To create a new product, you can check the article Create New Product
If you want to add a complementary product type, you can check this article Complementary Product Type
If you want to add a manufactured product type, maybe you can check the steps in this article Manufactured Product Type
To create multiple UOM product types, you can also check this article Multiple UOM Product Type
To create a Non-inventory product type, you can check this article Non-Inventory Product Type