Answer:

Now you can create and add your own columns in all register reports of FusionRetail 6. To implement this feature please use the following steps….

1. Open any register report (As sale register)
2. Press Alt + K (or you may use the ‘–K Add Column’ button) it will open a new window.
3. Enter Column name
4. Select type from the list
5. Enter other details 
6. Ok
7. It will open an expression Editor
8. Enter expression here and press ‘Ok’ button

Note:

You can save this view by pressing F10 button and giving a suitable name. After creating a new column you can find it in column chooser.