Expansion Header - LattePanda Alpha

Hello,
I want to be able to change function on some pin. Is there a document with each pin on the expansion header and the mode setting for each pin.
Also, is it possible to have access to I2C2 pin without using the Touch display connector.
Thanks
I want to be able to change function on some pin. Is there a document with each pin on the expansion header and the mode setting for each pin.
Also, is it possible to have access to I2C2 pin without using the Touch display connector.
Thanks