Can't Edit The PCB

Hi, I have try to follow the step for editing PCB amount at Statutory Contribution but the system keep on mention is duplicate wording. Any one can help on this?

Then the item must have already existed. Try to search “All” items, you will see that it has already existed.

Hi, actually i just have these few only. Do i click the correct place?

Take a look at the upper right Magifier icon.

Kindly understand that I am not able to provide hand holding training. I will close this topic.