Example based on my need:
I was hiding Custom Field Template on the Post page, so i went to the bottom of the post options, then added the name in the left text area (Custom Field Template in my case, for your reference so it can be anything...) and the selector for the element in the right (# for ID and . for class - so i entered #cftdiv)
Name for option in left -> selector in the right
Click "Update Options"
Go back down and find your newly created option and select the boxes as needed