A load document not yet split has active driver fields (1) and has blanks space in (2) and (3).
To split the load, you can use any of the following buttons:
All these buttons should lead to the same result
Note: before pressing any of these buttons, in the grid with stops you must select the one stop that will be the last in the first subordinate document . It cannot be either the first or the last stop of the main document. How to choose the first or last stop - the system should show a warning about the inadmissibility of such a choice and not allow splitting the document.