Currently, the kendoEditorCreateLinkButton does not provide a way to specify the Dialog container, as the following article demonstrates:
Please consider providing a built-in appendTo option to the link button directive. This will help to determine where the Dialog will be appended when the Editor is used within a kendoGridEditTemplate/kendoGridCellTemplate:
Using kendoGridEditTemplate:
https://stackblitz.com/edit/angular-yddl1n-inbwen
Using kendoGridCellTemplate:
https://stackblitz.com/edit/angular-yddl1n-t3afde
While the feature request is still valid, we are declining this request due to low interest and demand.
If it turns out to be popular in the future, we will reconsider the status.
Regards,
Martin
Progress Telerik