I found this under the help section. It's not exactly what you're looking for, but it might work.
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Each user of a shared workbook can set independent options for how often to receive other users' changes.
1 Open the shared workbook.
2 On the Tools menu, click Share Workbook, and then click the Advanced tab.
3 To see other users' changes each time you save the shared workbook, click When file is saved under Update changes.
To view other users' changes periodically, click Automatically every under Update changes, type how often you want to get updates in the Minutes box, and then click Just see other users' changes. To save the shared workbook each time you get an update so that other users can see your changes, click Save my changes and see others' changes.
4 Save the shared workbook.
