There is no reversal button as such, but there are two approaches.
One is : send another adjustment with opposite figures to the original, i.e. same amounts but with negatives in place of positives and positives in place of negatives. That’ll put you back to square one. Then send the correct adjustment.
Other way: figure out the difference between your incorrect interim figures and your desired final figures, and send an adjustment for those amounts to correct the amounts in one step.