You then must call up all assignment files and re-store them in order to remove the objects from view. The Interactive Assignment Mode is very easy to use. It is rather like a video game. Its even better if you have a 13 year old boy in the house. You may be able to get him to do all you assignment fields for you.
Crowded fields are especially challenging.
The screen is correct. This will be corrected at some time in the future. It appears to work and could be useful for selecting centers of target fields, but the reliability of the mapping software is untested in this mode.