| 摘要 |
A tool for providing visual editing elements is provided in the form of a pallet with customizable entries. The pallet entries are a plurality of base prototypes ( 311 ) of elements, each base prototype providing meta-data properties of the element. At least one sub-prototype ( 312 ) is associated with a base prototype ( 311 ) with defined meta-data properties. The sub-prototype ( 312 ) is selectable by a user to create an element instance ( 313 ). An element instance may also be added as a new sub-prototype ( 313 ).
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