COGO dialogs that include a Compute button, display an Undo button after the computation is complete. This button lets you undo the computation, completely removing any computed points and traverses from the survey.
TPC keeps track of the points and traverses that are created when you choose Compute in a COGO dialog. Often times, the computed data is redisplayed as traverses and points and their appropriate views. You will often times see the data appear in the current drawing also. All of this can be undo with the Undo button.
You can even close a COGO dialog, use the computed points and traverses anywhere in the survey then re-open that dialog and remove (Undo) the computed data from the survey.
There is no Redo button associated with the COGO dialogs. If you wish to recompute the data, just repeat the steps in the COGO dialog you used to create that data in the first place.
COGO Commands - reference