When i buy the item, how much time will i have to download updates?
Can i specify any module width for the layout?

In you Demo when i add a product i can see in the checkout some things i wanted to ask about:

- In "order reviews" i can see below de "price" area there is no value showed, will this same happen in a live site?
- No "up and down arrows" are shown in the cart for the product qty to add or substract qty, can this be added?
- If i have my store configured to not to show tax in the checkout will it still show the tax field ad in the demo? or that field will not be shown?

One question also not regarding this extension but your "Advanced Virtuemart Invoices" extension, is this compatible with joomla 3.5 and the latest Virtuemart availabile?