Category Setting
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1. Category Setting
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In ISAT, you can customize category names and their display colors.

Click the ``Category settings`` button to open the category settings interface.

.. image:: ../../display/category_setting.png
    :alt: category_setting.png

.. tip:: The background category is not modifiable in ISAT.

2. Select Category
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Before starting the annotation, you need to select a category.

.. image:: ../../display/category_dock.png
    :alt: category_dock.png

If the targets to be annotated belong to the same category,  it can save a lot of work.

2.1 Category Selection Shortcut
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Numbers ``[1 - 9]`` are category selection shortcut keys, allowing you to quickly select the category.

2.2 Quickly Locate the Category
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ISAT uses a fuzzy matching algorithm to locate the desired category from a large number of categories.

.. image:: ../../display/category_search.gif
    :alt: category_search.gif

.. tip:: The shortcuts from 1 to 9 also apply to the filtered categories.