The # Order Number column shows the positions of group boxes on the tab and elements within group boxes.
Whole numbers in this column represent group boxes. Decimal numbers represent components within group boxes. For example, say the table shows a row with an Order Number value of 1 and another row with an Order Number value of 1.1. The row with the Order Number value of 1 represents a group box, and the row with the Order Number value of 1.1 represents a component within the group box. A group box with an Order Number value of 1.2 would represent another component within the group box.
If you want to use your own numbering scheme instead of the automatic numbering provided by the Tab Wizard, select Hide group box numbers and add your own numbers in the Label cell.