The Quantity field is comprised of two parts: the left field is the number part of the quantity, and the right dropdown is the quantity units. To enter a quantity, put the number part in the left box and choose the units from the right box. You can either click the down arrow to open the dropdown or type the first letter of the unit you want to use until the one you expect appears in the window. You can also type the quantity in the number box, such as ‘1mg,’ and it will transfer the units to the units box.
Note: Nonstandard quantity units, such as taste, will not be translated to a numeric/unit value, and can’t be used in calculations.