[ADD] Spreadsheet/Reporting/Search

Task ID: 3053800

closes odoo/documentation#3000

Signed-off-by: Antoine Vandevenne (anv) <anv@odoo.com>

content/applications/finance/spreadsheet.rst

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+:show-content:
+:hide-page-toc:
+
+===========
+Spreadsheet
+===========
+
+.. toctree::
+   :titlesonly:
+
+   spreadsheet/insert
+
+Spreadsheet lets you organize, analyze, and visualize your data in tabular form. Among others, you
+can:
+
+- :doc:`Insert and link your Odoo data (pivots, graphs, lists, and menus) <spreadsheet/insert>`.
+- Use default templates or create your own.
+- Format your data.
+- Use formulas and functions.
+- Sort and filter your data.
+
+.. _spreadsheet/glossary:
+
+Glossary
+========
+
+Some of Spreadsheet's main :abbr:`UI (user interface)` elements are highlighted and defined below.
+
+.. image:: spreadsheet/ui-elements.png
+   :align: center
+   :alt: Spreadsheet main UI elements
+
+#. Menu bar
+#. Top bar
+#. Formula bar
+#. Filters button
+#. Row header
+#. Column header
+#. Cell menu
+#. Bottom bar

content/applications/finance/spreadsheet/insert.rst

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+=================
+Linking Odoo data
+=================
+
+You can insert and link several elements from your database in your spreadsheets, namely:
+
+- pivots,
+- graphs,
+- lists, and
+- links to menus (i.e., a clickable link to a view of a specific model).
+
+Before inserting :ref:`pivots <reporting/views/pivot>`, :ref:`graphs <reporting/views/graph>`, or
+lists, ensure they are tailored to your needs, as some elements are more quickly - or only -
+configurable in their respective view.
+
+- To insert pivots and graphs, click :guilabel:`Insert in spreadsheet` from any pivot or graph view.
+- To insert lists, click :menuselection:`Favorites --> Insert list in spreadsheet` from any list
+  view.
+- To insert links to menus, click :menuselection:`Favorites --> Link menu in spreadsheet` from any
+  view.
+
+In the pop-up box, either create a new spreadsheet by selecting :guilabel:`Blank spreadsheet` or
+insert it in an existing one by selecting it and clicking :guilabel:`Confirm`.
+
+.. image:: insert/insert-spreadsheet.png
+   :align: center
+   :alt: Inserting a pivot in a spreadsheet
+
+.. note::
+   By default, new spreadsheets are saved under the :guilabel:`Spreadsheet` workspace of the
+   Documents app.
+
+.. _insert/update:
+
+Updating data
+=============
+
+Once inserted in a spreadsheet, your data is kept up-to-date, reflecting any changes made to your
+database. Reopening the spreadsheet reloads the linked data.
+
+.. note::
+   To update pivots and lists data without reopening a spreadsheet, go to the menu bar and click
+   :menuselection:`Data --> Refresh all data`.
+
+Pivot data
+----------
+
+Using :guilabel:`Refresh all data` only updates existing pivot cells. If new cells need to be added,
+go to the menu bar and click :menuselection:`Data --> Re-insert pivot` to fully update the pivot.
+Alternatively, click :guilabel:`Insert pivot`, select the pivot, and tick :guilabel:`Display missing
+cells only` to preview first the missing data.
+
+   .. image:: insert/missing-cells.png
+      :align: center
+      :alt: Displaying missing cells in a pivot
+
+To change which records are :ref:`used by the pivot <search/preconfigured-filters>`, right-click on
+a pivot cell, select :guilabel:`See pivot properties`, and click :guilabel:`Edit domain`.