I asked so because if you are not claiming any points than you might aswell remove that section but since you are I dont want to guide you wrong. I will wait for someone with expereince to shed some light on this.
Here is what i found on the forum search:
I believe it's too late to change your NOC code. Your profile must be locked. See the following link:
From this above link - "Candidates' Express Entry profile is automatically “locked” when they are issued an ITA. Candidates can only revise their profile information if they formally decline the ITA through their MyCIC account. When candidates decline an ITA, they are automatically returned to the pool and will be able to update their profile information, as they wait for a new ITA."