Yes, it is possible to create a group of filters in Odoo. These groups of filters are referred to as "filter groups" in Odoo's user interface. They are commonly used to organize filters and make it easier for users to find relevant filters for specific scenarios.

To create a filter group, you can follow these steps:

Go to the list view of the model you want to add the filter group to (e.g., Sales Orders, Purchase Orders, etc.).
Click on the "Filters" dropdown in the top right corner of the list view.
Click on the "Manage Filters" option.
In the new window that appears, you'll find a button to "Create" a new filter group. Give it a name and click "Save."
 
Filter by Document Numbers:
If you have several documents with the same number and you want to create a filter that shows all available numbers in the group- you can use the domain like [('field_name', '=', 'your_document_number')]
or you can try this method

<record id="view_my_custom_model_search" model="ir.ui.view">

<field name="name">my.custom.model.search</field>

<field name="model">my_module.my_custom_model</field>

    <field name="arch" type="xml">

        <search>

            <!-- Add the custom search filter for document numbers -->

            <filter string="All Document Numbers" domain="[]" help="Filter by Document Numbers" context="{'group_by': 'name'}"/>

        </search>

    </field>

</record>

Hope it helps