You may need a xml file in Kernel/Config/Files. (yourfilename.xml)

<?xml version="1.0" encoding="utf-8"?>

<otrs_config version="1.0" init="Application">

    <ConfigItem Name="Stats::DynamicObjectRegistration###somethingname" Required="0" Valid="1">

        <Description Translatable="1">Some sort of description</Description>

        <Group>Ticket</Group>

        <SubGroup>Core::Stats</SubGroup>

        <Setting>

            <Hash>

                <Item Key="Module">Kernel::System::Stats::Dynamic::yourmodule</Item>

            </Hash>

        </Setting>

    </ConfigItem>

</otrs_config>