Click the Worklist tab and then the Folders tab. Select the folder containing the study.
Find the study on the worklist and click on the Quick View button, 
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If the study is a shortcut, click the Split button. You are prompted to go to the source study's Quick View page to split the source study. If you click OK and arrive on the source study's Quick View page, or if the study in the folder is a copy of the source study, click the Split button and follow the directions for splitting a study.
Studies in folders can be split. The behavior differs depending on whether the folder study is a copy or a shortcut.
Studies saved to folders as a copy are split the same as ordinary studies using the Split button on the Quick View page. Split copies appear in the same folder as the copy.
Since a shortcut is actually a link to the original study, splitting a study with shortcuts splits each shortcut into the same number of studies. The resulting shortcuts appear in the same folder as the original shortcut. The Split button is available on the shortcut study’s Quick View page. When pressed, the system offers to take the user to the original study’s split page.
Splitting shortcuts appear in the logs as moveshortcut actions.
Merging is unavailable for shortcuts in folders.