When using the product reference widget inline entity field in a non demo Kickstart rc3 install the product variations field settings number values are set to one. This mode leaves the add attributes button unexposed.
In order to add multiple attributes to a single display this must be changed to unlimited.
The way this was found was a clean install of the Kickstart rc3 using the non-demo store. Categories created were populated. A product type was created with term references to said categories. A display type was then created with the product variations product reference field using the inline entity form widget. An attempt to build a product produced the lack of the ability to add product variations. Changing the default product variations field setting number of value to unlimited solves the issue.
Setting this to unlimited by default makes sense because the intention of product variations using the inline entity field is multiple variations.
This feature request was verified by joshmiller in the #drupal-commerce IRC channel.
Screen capture of the select field change.
https://www.evernote.com/shard/s71/sh/c44480ff-61c9-468e-82cf-2416fccb08...
Comments
Comment #1
bojanz commentedProblem is, by default "no demo store" doesn't create any attribute fields, so you don't have any data to distinguish product variations.
That's why I set the cardinality to "1", and I'm still unsure which option is more annoying.
Comment #2
bojanz commentedChanged it back to "Unlimited".