That can be done if you enable "Variations which tell more about the product" in your product's settings:

http://www.e-junkie.com/ej/help.variants.htm



If you leave the list of Option Values blank for a given Option Name, the button code we provide will include a text field for that option instead of a menu. Note that if you use Variations to define a combination of menu-based and text-field options, you should make the menu option(s) first and the text-field option(s) last -- e.g., Option 1 as a menu and Options 2-3 as text fields, or Options 1-2 as menus and Option 3 as a text field. This is due to a quirk of PayPal where, if an option value is left blank, they ignore subsequent options for that product; by putting the text field(s) last, the menu selection(s) would still be passed if the buyer leaves the text field(s) blank.

Typically, you would enable "Let buyer edit quantity" in the product's settings to allow buyers to enter an item quantity in their shopping cart. If you prefer to put a quantity field or menu on your page, so buyers could specify a quantity before they click Add to Cart, you could do that by adding a "quantity" field/menu to your Add to Cart button code:



Text field:

<input type="text" name="quantity">



Menu:

<select name="quantity">

<option value="1">1</option>

<option value="2">2</option>

<option value="3">3</option>

</select>



You can also combine "Variations which tell more about the product" together with "Variants having individual price/weight/stock/sku" to allow up to 6 option categories, of which up to 3 could be text fields. The help page I linked above has a subsection at the bottom explaining this in more detail, with tips to determine which option(s) should use Variations vs. Variants.



If you are selling your product in a range of fixed-quantity "multi-pack" sizes, you could use Variants to define a price for each discrete pack size, as explained here:

http://www.e-junkie.com/ej/tips.discounts.multipack-variants.htm

Unfortunately, we don't have a built-in way to handle that many fields and menus. Typically, the buyer's name, email and phone number are collected at checkout, but that may not be sufficient in your case, as the buyer may wish to specify those details differently for their order than what's already saved in their account profile with PayPal (or other payment processor).



Some sellers have used custom javascript to accept entry in more than 3 text fields and then combine those entries into the 3 fields that actually get submitted to our cart and then passed to PayPal; however, this may still be too limited for your needs, as those fields are limited to 200 characters for the first field and 98 characters for the second and third fields. You may wish to consult further about the feasibility of this approach with one of the competent, E-junkie-experienced independent developers for hire listed in our directory here:

http://www.e-junkie.com/ej/developer-directory.htm