What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
Currently, there is no such feature as editable field in the Grid report.
BUT what you may want to try do instead is Edit the submission and edit the field/data you need to.
You can do the edition in the Submission panel of the form.
You can use the EDIT button to start edit mode. Once you edited the submission, the updated data will also reflect in your Grid report.
Hope this help. Let us know if you need further assistance.