Pay Invoice via Stripe or 2checkout - optional

Pay Invoice via Stripe or 2checkout - optional

Hi, 

We are trying to use Stripe and 2checkout for payments in Zoho Invoice. However, whenever a user tries to pay the invoice, only 2checkout option is being used when both of these options are checked. Furthermore, if we deselect any, the other option is used for the payments.  What we want, an option for the user to choose from Stripe or 2checkout to pay the invoice. 

Invoice payment options: http://i.imgur.com/1foH2W1.png
What a user sees for the payment: http://i.imgur.com/ol06CDd.png