I spoke with tech support at Zed Axis.  This is what they told me:

It is a limitation of the QuickBooks Desktop application interface they have not added a field were we can set a option to Allow Online Payment  

I tried switching to your online product but I could no longer use price levels which is very important to my business.  I cancelled my subscription to online and will go back to using desktop.  Can this field be added to the import feature of QB Enterprise Desktop?