For a template:
Step 1
Once you are in the template, click on Section Weights in the subnav.

Step 2
Click on the blue, primary action at the top of the page, titled Edit Weights.
Step 3
Enter your new section weights, which must equal 100%.
Step 4
Click on the blue Save Updates button.
For a plan:
Step 1
Once you are in the plan, click on Overview in the subnav.
Step 2
Click on the blue, primary action at the top of the page, titled Edit Plan Details.
Step 3
Enter your new section weights, which must equal 100%.
Step 4
Click on the blue Save Updates button.