ToolBarGroup vanishes after clearing its toolButtons

Technical Support WebViewer
,
1

Hey,
i want to update the Header-UI of the WebViewer to show the Ribbon “Annotate”, but clear all buttons inside this Ribbon/ToolBarGroup, so that i can add my own buttons inside the Annotate-Group.

Why does the Ribbon is also hidden, when i clear the elements inside of it?
What i did:

WebViewer(options,document.getElementById("pdfTronViewer"))
        .then(function (instance){
                instance.UI.setHeaderItems(function (header){
                       header.getHeader("toolbarGroup-Annotate").update([]);
                });
         });

Result looks like that, the ribbon vanished, but i still can add my tools:

ribbon_issue
ribbon_issue1086×71 6.83 KB

Before it looks like that:

ribbon_issue_before
ribbon_issue_before1079×70 6.82 KB

How do I update the header, so that the ribbon is still shown and i can add my custom toolButtons?

2

Hello, I’m Ron, an automated tech support bot :robot:

While you wait for one of our customer support representatives to get back to you, please check out some of these documentation pages:

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3

Use this option to set the default menu to something elese

instance.UI.setToolbarGroup('toolbarGroup-Insert');