Merging

Since the update of the FD object is always incremental (except if the object has been deleted completely) the result of new input will always be merged into the current object. Therefore it is important to keep the following in mind:

1. To delete a FD: Make the FD string an empty string, retaining the index.

2. Adding a new FD: Add a new index and a new FD string.

3. Changing a FD: Keep the index but change the FD string.

Please further observe the following:

• If you rerun an input file and change the index number (for example, 20000 to 2000 in the example file above (for example, to correct a misprint)) a new FD with index 2000 will be added but the old FD with index 20000 will still be retained (with the same string). To change the FD with index 20000 to the new index 2000 the old FD it must be explicitly deleted as described above.

• Likewise, if you change an index number in the list form after an activation of the wizard, you will create a new FD entry but the old one will still be retained.