What inspired this wish list request? JMP18 does not provide a tolerance interval for a linear fit, though it does provide Confidence and Prediction Bands (selectable by check-box in Graph Builder).
(ref.
https://projecteuclid.org/proceedings/berkeley-symposium-on-mathematical-statistics-and-probability/... )
What is the improvement you would like to see?
Add a check box for Tolerance Interval in the "Confidence" section in the Graph Builder platform, along with the means to specify confidence and coverage for that interval.
Why is this idea important? Tolerance intervals are essential in characterizing a model, but calculating these intervals is cumbersome -- and practically impossible to do this dynamically the way the GB platform easily does for the Confidence Prediction Bands.