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Let us explain what you see in more detail: 

@SUMMARY and @PICTURE are  and @PICTURE are attribute, they manipulate the behaviour of the knowledge based system comparable to all the Slots&Properties. Using the @SUMMARY attribute you tell the system to display an overview of total selection made based on the dialog through de included data. @PICTURE tells  @PICTURE tells that pictures should be displayed of which the references are given in the included dataset.

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By including "OPTION" in the the table, the database selection returns only a single value, being the selected case value of "OPTION" instead of all values related to the selection.

As mentioned the @PICTURE attribute the @PICTURE attribute defines that relevant picture information can be presented throught a references to these images. For "OPTION4" this has been defined. For example, table 1:twind1 refers to an image "twind1" in QBinaries object in the Dataset (QBinaries is a reserved Quaestor object that can be used to store all knowledge base fixed binary data, see Image Management in Quaestor>topics>Technical documentation>).

Please note that, if another object is used as data source (as is done in Example 1) referring to images in the QBinaries will only work if the parameters used in the refered object haveValue:Label as string values and a @PICTURE attribute a @PICTURE attribute in there dataslot.

Example 3, Use of binary data in the dataset with an |OPTION| script:

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