Programming with Reflection
AddButton method
Syntax object.AddButton Index
Adds a button to the Standard toolbar.
Index Argument type: Integer
The location for the new button on the toolbar. If Index is 1, the new button is the first (leftmost or top) button in the toolbar. If the number is greater than the number of buttons on the toolbar, then the new button is the last (rightmost or bottom) button.
Note: This method allows you to update the Standard toolbar only. If there is no Standard toolbar, it is ignored. The newer DefineToolbarButton method allows you to add additional buttons to any available toolbar.