How to list multiple items at different prices on one listing?

[spikeyherbs]

I've seen several listings with one common product, but I cannot figure out how to make a multiple product listing.

[rfmtm]

Create a fresh new listing and select the category.  If the category supports Variations, you will see the Create Variations options to click on.

Note you can not use this feature to create "choice" listings where items are unrelated.  However, variations can be used for different colors, size, quantities, etc., of related items and assign different prices to each.