Analog Devices Filter Wizard Schematic Question
The capacitors are power bypass. It’s always a good idea for reducing the impedance of the power supply close to the ICs. 

The rest seems to be a software bug. That’s the kind of thing you would do if you have extra unused amplifiers left over in a package. 

The fact that it’s numbering all of the amplifiers as a quad U1A-C and indicating 1/2 on each, seems to be part of the same bug.