If the option to 'Edit' the Booth Information is grayed out for a booth on the Company > Booths page, you can follow these steps to disassociate the Parent Booth from the assigned booths.
STEP 1: From the Company > Booths page, click on the 'Configure' icon, it looks like a gear, next to the booth where the 'Edit' icon is NOT grayed out. This is the Parent Booth for all of the other booth profiles.
STEP 2: Click on the 'Break Parent-Child Relationship' link under the 'Parent Booth' field.
STEP 3: Go back to the Company > Booths page and you will see the option to edit each booth profile is now available:
TIP: once you have broken the parent-child relationship for all booths, you can associate a Parent Booth to any of the booths. This may be helpful if the exhibitor only needs to have one booth as a separate booth profile versus all booths as separate profiles.