Multiple Quantity Listing

[ggga2901]

Have not sold on Ebay in a while, and just created a listing and it appears that they have changed the data input form.  I have multiple quantities of the same item available, but the "Quantity" input field shows 1 and is greyed out and won't let me change to the correct number I have available?   The checkbox underneath says "Sell as A Lot" but it's not a sigle lot, just multiple quantities.  Any advise appreciated.

Regards,

C. Martin