To add option fields to pass through additional information (such as text), use our four option variables: on0, os0, on1, and os1. These proprietary variables must be used in the order shown; otherwise, PayPal's system won't recognize them.

The button generator on the PayPal site lets you create two fields, but if you go into the code and manually edit the lines, you can get three or four option fields.  

Drop-down menus

The four drop-down menus would look like this:

Color

<select name="on0">
   <option value="Grass">Grass Green
   <option value="Periwinkle">Periwinkle
   <option value="Dandelion">Dandelion
   <option value="Vermilion">Vermilion
   <option value="Violet">Violet
</select>

Size

<select name="os0">
   <option value="Large">L
   <option value="Medium">M
   <option value="Small">S
</select>

Cut

<select name="on1">
   <option value="Cut 1">Cut 1
   <option value="Cut 2">Cut 2
</select>

Style

<select name="os1">
   <option value="Style 1">Style 1
   <option value="Style 2">Style 2
</select>

Text fields

The four text fields would look like this:

Color

<input type="text" select name="on0">
</select>

Size

<input type="text" select name="os0">
</select>

Cut

<input type="text" select name="on1">
</select>

Style

<input type="text" select name="os1">
</select>