2 Microphones into a mono

[Sxedon Paraskevi]

I have a focusrite 2i2 and two microphones, the one sounds from the left ear and the other from the right, how can i switch it to both go out to both channels ? thanks

 

[djsoft]

I have a focusrite 2i2 and two microphones, the one sounds from the left ear and the other from the right, how can i switch it to both go out to both channels ? thanks

Do you use a mixer board?