Hi @Cao Yi,
you are right that this is not possible at the moment. Please vote and/or watch this feature request: https://jira.atlassian.com/browse/JRACLOUD-69231
As a workaround they advise you to disable the new view:
In the meantime, you can opt out of this new issue experience via your Personal Settings > Jira Labs section will have a 'new issue view' toggle to turn it on or off. We will not be disabling this opt-out option until we have rebuilt all the key features of the Jira issues experience you have come to know and love.
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