Fraction values for customized/custom item costs/weights

Currently, the override cost/weight values and custom item cost/weight values are integer values (for example, 1 gp, 5 lb, etc), while hard coded items (items selected from the "add items" section of the "manage inventory" menu of the "inventory" tab of the character sheet) allow for partial values (for example, .01 gp, .5 lb, etc). It would be more consistent if the custom values could match the hard coded item values.