We have plain text content controls bound to custom xml. When opening on Word Online the bound content controls should get their data from custom xml. We tried to work around this by using GetOOXml() to get the document's open xml, then update the values on server side, then use InsertOoXml() to insert the updated open xml. But it seems that InsertOoxml() does not support content controls yet.

I hope either of these two features that we need get supported soon. 1. Update text of bound content controls when opened on Word Online.

1. InsertOoxml() support updating content controls.

Thanks,
Rainier Paul Lugue