If you've the page button on the left side of your steering wheel(I have it on my EX-L) you can show it on your upper screen.
Mine toggles through: two trips, A & B, and the audio, and something else??...IIRC.
I tried the page button. It just duplicates sequentially what you can do by hitting the button of your choice, Nav, Phone, Info, or Audio. And as far as I can remember, there is no Trip B display per se available on the iMid, just MPG for the current engine run cycle and the previous cycle. No miles are displayed, only MPG, although I will have to verify that the next time I'm driving.