Well, I'd guess the schema is an issue here - I'm thinking you'd need two fields instead of one. One to bind the checkbox to, and one for the initial objectives. Is this form currently in use? If not, you could change the schema to use a repeating group with one field for the user to enter the objectives and another that was True / False for the checkbox. I'm attaching a simple sample. Since we can't bind a field in a repeating group to a bulleted list control type, I'm sort of faking that with a repeating section.