This field contains ID of the POS menu that controls the look of the time interval heading buttons in the timeline view of the Allocation panel.
Menu line with Key No. 1 controls the look of the first button. This button is just an information button. Here you select what text information is displayed as description. You can for example select <#TR-ActiveDate> to show the active date and/or <#TR-SEL-PERIOD> to show the active period.
Menu line with Key No. 2 controls the look of the interval heading buttons. The program inserts the interval text automatically for each interval heading button.
The field No. of Columns Shown for the dining area controls how many interval heading buttons the program creates when displaying the timeline view.