Yes, as per the Rulebook section 5.1.2, your team will score points for each connections to a charging station regardless of the source activation state at this time.
Yes, you are allowed to change the code of your robot between each match. Pay attention to present your robot on time for the following match or you can be disqualified. You can also make hardware modification, in that case you will need to ask for a Robot Review to be performed by a referee before being allowed to proceed with your next match.
Sorry for the inconvenience, I will check that and publish an update ASAP.
No. However your robot will be limited by the energy available from the sources as it is forbidden to gather energy from another source than the Energy Sources on the field.
TEAM NAME: BASILISK