Thank you for your feature request!
This forum might be duplicate to this one RadEditor and Wiris. Please check it out.
We had an integration demo with Wiris but since the tool changed its API, it no longer works.
On the other hand, the integration demo http://www.wiris.com/plugins/docs/radeditor provided at https://feedback.telerik.com/aspnet-ajax/1376945-updated-demo-of-using-wiris-editor-plugin-within-the-radeditor was made and supported by Wiris. There is yet another broken demo with RadEditor on their site - http://www.wiris.com/plugins/demo/radeditor/aspx/index.aspx.
My advice is to directly contact the Wiris support at firstname.lastname@example.org and request them to fix the demo or to provide a new one.
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