While looking for some tutorials I ran across this on the airtable website. I am very interested in using this, but can’t find it. Does anyone know where I can find it on the workspace? 
You can read the whole article here:
https://support.airtable.com/hc/en-us/articles/360022745493#h_a8ad9c3a-e2c3-4b82-a4fc-b27a1d87104a
“Last modified time” is a new field type, and should appear in the list of field types when you double-click on a field header and choose the field type drop-down. There’s also a related function that can be used in formulas.
Are you saying that you don’t see this new field type listed?
@Justin_Barrett - oddly enough after you said that I did find it, just not where I needed it (primary field). Thank you.
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