I thought I can contribute to the food database more easily

When the serving size is not equal to the bundle size, there is no easy way to create another serving unit, either in the app or website. Please improve.

Details:  Use the attached image as an example, the serving size , according to the nutrition fact table, is 57 grams. I measured the weight of each bundle in the bag was 90 grams.  When I am going to contribute this food to your database, I scanned the barcode and clicked add food, then I enter "serving (57g)" for the description and enter 57 g as the serving weight. Everything else can be from the nutrition fact table as shown in the image.

When I want to log this food, the serving unit dropdown menu displays only 5 choices : "serving(57g), gram, ounce, kilogram, pound".  I expect I can add another serving unit eg. "bundle(90g)" into the list without needs to calculate all the nutrition numbers by myself because they can be calculated from those of "serving(57g)". But looks like you don't have this function yet. Please add this feature. Thanks!