How to add menu items to same dropdown menu in top navigation bar from different plugins?

[Deleted user]

I am trying to add a new menu in the top navigation bar, which shall be filled from different company addons. But when I try to add a new web-section with some web-items to my existing menu they do not appear.

In my addon Jira-Helper with the plugin key com.company.jira.plugin.helper I have the following menu item in the to navigation bar:

<web-item 
    key="company_top_menu_item" 
    name="company" 
    section="system.top.navigation.bar" 
    weight="999">
    <label key="top.menu.name"/>
    <link linkId="company_top_menu_link">/secure/Dashboard.jspa</link>
</web-item>

In my addon Report-Plugin with the plugin key com.company.jira.plugin.reporter I have the following menu sections and items, which I want to add to the already existing menu:

<web-section
    key="company_top_menu_section" 
    name="company reporter" 
    location="company_top_menu_link" 
    weight="999"> 
    <label key="reporter.name"/> 
</web-section> 

<web-item 
    key="company_top_menu_config_item_A" 
    name="report A config" 
    section="company_top_menu_link/company_top_menu_section" 
    weight="10"> 
    <label key="reporter.config.reportA.name"/> 
    <link linkId="config-link">/projects/REP?selectedItem=com.company.reportingpanelA</link>
</web-item> 

<web-item 
    key="company_top_menu_config_item_B"
    name="report B config" 
    section="company_top_menu_link/company_top_menu_section" 
    weight="20"> 
    <label key="reporter.config.reportB.name"/> 
    <link linkId="config-link">/projects/REP?selectedItem=com.company.reportingpanelA</link> 
</web-item>

But neither the web-section nor the web-item is showing up. It only works when I put the definition of the main menu item in the top bar into the reporter plugin. But then I have two man menus in my top bar when both plugins have the definition.

Where is my mistake here? How can I add menu items from different plugins to the same top level menu item in the top navigation bar?