Hi Arno,
Thank you for contacting Syncfusion support.
Yes, we have scrolling support for SfRichTextEditor since it is implemented from web view it will have the default web view scroll support inside the editor control. We have prepared a sample based on the mentioned requirement, which can be downloaded from the below link.
Note:
The Xamarin Rich Text Editor control is a WYSIWYG(HTML) editor that provides a great user experience for composing or editing rich text content from your Xamarin.Forms applications. We have built our control based on WebView concept.
As mentioned in MSDN, ScrollViews should not be nested with other controls that provide scrolling, like ListView and WebView. So, the scrolling is not working in SfRichTextEditor which is inside ScrollView. This is a known behavior of WebView. So, we recommend not to use Rich Text Editor control inside ScrollView. This information will be updated in our UG documentation shortly.
Kindly let us know if you require any further assistance.
Regards,
Devaraj S