In answer to post:
Unlike FLL, Vex IQ rules are not designed to have the robots have attachments removed during the match intentionally. If something false off unintentionally, then there is no penalty, but it cannot be designed to do so as part of it’s operation.
You can, however, have different attachments for the robot that can be replaced in-between matches. Provided it still meets the rules of the 3 parts of the robot and has been inspected in that configuration.
Some teams may do this to alter the operation of the robot a bit between driver and autonomous skills. Or skills and team matches.