US visa appointment for self and spouse

My spouse and I qualify for dropbox (H1b and H4 extension) respectively.
I created DS-160 for both of us and created a CGI reference number to pay visa fee for both of us. I now have two bank receipt numbers. Do we get to book the appointment together or separately? If we need to split the visa appointment can that even be done?

Yesterday i also booked appointment.In one login (application)if there are two people so can not split the timing like one at 10 or another at 11. No you can not do that. You have create another login for other person then only you can do.