How to prevent ungrouping grouped rubber stamps

Which product are you using?

  • PDF.js Express Plus

PDF.js Express Version

  • 8.2.0

Detailed description of issue
When grouping programmatically two annotations (stamps), the user can ungroup them from the button that appears when clicking the grouped stamps.

**Expected **
How to disable or hide the ungroup button
Screen Shot 2022-07-20 at 19.07.31

Does your issue happen with every document, or just one?
It happen with every document

Link to document
{Provide a link to the document in question if possible}

Code snippet
{Provide a relevant code snippet}

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I found the answer in this guide: Popup API with JavaScript | PDF.js Express SDK