The basic process we must follow to modify an existing report is the same, regardless of whether the report is one of the standard reports that comes with Business Central or a custom report that we are enhancing in some way. An important discipline to follow in all cases where we are modifying a report that has been in production is not to work on the original, but on a copy. In fact, if this is a standard report we are customizing, we should leave the original copy alone and do all our work on a copy. Not only is this safer because we will eliminate the possibility of creating problems in the original version, but it will make upgrading easier later on. Even when working on a new custom report, it is good practice to save intermediate copies for backup. This allows you to return to a previous working step should the next development step not go as planned.
While it is certainly possible to add a new layout to an existing dataset...
