Latest snapshot:

http://10.204.0.5/1.2/2020-10-13.00.01.01/SafetyManual/qtsr-safety-features.html

Quote:

"For example, you can drag and drop the safety-critical types to the canvas (that is the working area where you create your UI), and define properties and connections for them. "

The drag and drop can be done also to the navigator, as listed here:

https://doc.qt.io/qtcreator/quick-components.html

1. "Drag and drop components from Library (1) to Navigator (2) or Form Editor (3)."

It may sound like a minor thing, but there are some advantages when using the navigator (e.g. hierarchy), so maybe it could be also mentioned as an alternative?