If a graph is too big it could be very tedious (or impossible) to edit it entirely. In this case, CoGui provide a reduced edition mode. Just a part of the graph is displayed. Visible relations are always completed, but displayed concept can have hidden neighbors. Example below shows concepts with hidden neighbors, the number of hidden neighbors is displayed on the upper right corner of the concept.


The limits to choose partial edition rather than whole graph edition can be changed in CoGui options:


If a big graph is directly edited from the project tree, some vertices are chosen by default. The user generally prefers to display and update a precise piece of graph. To correct errors inside the graph, choose the edit option on the message in the error view and the graph will be automatically opened with the vertices that generated the error. When another error is selected, the previous edition is replaced by the edition of the new concerned vertices.
To edit parts of the graph without any error, we must query the graph (See section Querying) and browse through projections in the result view.

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