When you are creating a worksheet with a calculation, it is difficult to know whether your calculation is right first time. You have to save the calculation, save the worksheet, and then refresh the record (on a new tab). If it requires an adjustment you have to open to modals to get back to the calculation and change it.
Suggestion is to be able to select a record from the settings calculation screen and visualize the result whilst you're right there - it would save time and effort when debugging issues.
Thank you for the idea. Given the low volume of support for this idea, we do not have plans to make updates in this area at this time. We hope you can understand.