No, date fields all hold one single item, you'll need two of them.
As for the layout, again, no, JIRA lists them one line at a time.
Both of those could be done if you're willing to find or write an add-on to provide a dual field, and/or code to re-arrange the display
If you spend enough time as a Jira admin - whether you are managing a single, mid-sized instance, a large enterprise one or juggling multiple instances at once - you will eventually find yourself in ...
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