Hi,

See the demo with custom header buttons:
https://www.htmlelements.com/demos/window/custom-header-buttons/

If this does not meet your requirements you may have a custom header template, see here:
https://codepen.io/svetoslavb04/pen/GRwGzza

Best Regards,
Svetoslav Borislavov

Smart UI Team
https://www.htmlelements.com/