To achieve an active conference  as same as possible to face-to-face meetings, plural virtual rooms will be available parallely  (ex. reception, main conference room, each poster room etc.) which uses the Zoom feature “Breakout session”. But the feature that moving from a breakout session to another one yourself is available from the latest version (Ver. 5.3.1 as of September 21). Therefore, please check your  “Zoom” version before the conference.