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           The file versions listed in the References window for a model version are the subset of entries in the Auxiliary Data window whose Source column point to the database. 
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             The type column — the type of the item represented by an icon. 
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             The Reference Type column — describes the relation between a model version and a file version as an Input file. 
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           The database protects the referential integrity between item versions: a file version referenced by a model version cannot be permanently deleted, as long as both versions are saved in the same database. 
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             Click the Refresh button ( 
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             Click the Link with Selection button ( 
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             Click the Version Details button ( 
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             Click the Run button ( 
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             Click the Preview File button ( 
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             Click the Compare button ( 
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             Click the Show Drafts button ( 
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             Click the Show Referenced Versions button ( 
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             Click the Show Referencing Versions button ( 
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             Select Export to New Local Database ( 
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             Select Copy Location ( 
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             Select Permanently Delete Version ( 
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