Dede content model added picture field editing how not to display thumbnails in the preview area?

ask friends who are familiar with dede, the content model added several "picture (URL only)" fields, everything is normal when uploading a picture, but when editing a document, the uploaded new picture will be displayed in the thumbnail preview area above, which is obviously unreasonable, it is obviously the original thumbnail preview area of the system, how can the new picture field be displayed there?

Apr.05,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3c4e9-2bb4d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3c4e9-2bb4d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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