Try to spell your name correct as "Firstname Surename" (only the most commonly used first (given) name is needed, with big initial letters and write your personal security number as yymmdd-xxxx. with the dash i.e. the minus sign.
Note: The selected group is used as your default group for all of the labs.
If you want to hand in some of the labs as member of a different group,
you can click on
Leave group for these particular labs and
join another one.
It's ok to work with different people in different labs. Just leave the group you are in and join another one.