Accept Online Donations

Is it possible to add several donations on one store?
Say Donate Cause A, Donate for Cause B, Donate for Cause C.

If I do this in my store, would customer be able to donate to all 3 "causes" during the same transaction and have the cart properly function? (Can't tell from comment from Sara Aden if this can be done or not)

Also, with this extension, could I add a real product and then categorize it as a "donation" so the customer can choose how much to pay for it?

AbanteCart 1.2.13

Money Donations - Customer Entered Donation Amount
1. Can't allow more than one donation to be added to the cart, only the most recent donation amount sticks
2. When printing the invoice the amount is $0.00 but the Total is the last donation amount.

We want people to be able to donate change, example an item costs $0.48, they can add a donation of $0.02 to the cart, then they shop more and an item is $0.98, they can add another donation $0.02 to the cart...the donation total should be $0.04 on the invoice and the total for the invoice should be $1.50. That isn't happening correctly right now.

Hi, Just bought the extension.
The installation went without a problem and the extension shows up in the list of installed extensions.
However I cant find it in any of the product listings, on the order page or on the checkout page.
Any help you can give would be appreciated.
Regards