Welcome to the ASP.NET Core feedback portal. We’re happy you’re here! If you have feedback on how to improve the ASP.NET Core, we’d love to hear it!>
Thanks for joining our community and helping improve Syncfusion products!
When placing a marker it would be great to be able to hide it behind a human-readable label.
The feature would be similar as in the document editor : 
Where the code is used to apply the marker but is invisible to the user, and the label is displayed in the cell.
Thanks