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In ServiceNow, it's not so easy to directly mimic this behavior. I've seen a grand total of ONE demo service catalog with multiple items on a single horizontal line, and that was using Berlin. I suspect they had to do a CSS hack to make it work, and I've thrown hours at this fruitlessly in the past.
So far, we have modeled the PTAEO input as a single box with dots separating the values for the fields.