I have some questions about the Stock by Attributes module, and wondered if anyone can assist, please.

Firstly: lets say I have an item with two attributes, one is colour and the other is size. Now, if I have in stock (and the stock is finite and cannot be re-stocked) 6 large, green; 4 medium, brown; and 3 small, green.

The item is showing that there are 13 items available, but let's say that one customer wanted 4 small green, and ordered them, does the module prevent him ordering four, OR does it allow the order for 4 small green items?

Are ordered items deducted from the individual attributes and the grand total or from the total only?

A further question about the module: how do I offer a discount for bulk purchase of at items? Using my example above, I want to offer a discount if the customer buys six of a specific item, thus discount would apply to a purchase of all 6 of the large green items, but of course, no discount will apply for the other items nor for any combination of these items that may equal or exceed 6 - the discount applies to the 6 large green items only. (If there were 6 medium brown items, then a discount would apply to a purchase of all six of them.) Is this possible, and if so how?