Is it normal that the "Add/remove elements" to/from sections functionality differs in Allplan 2020 and in Allplan 2021 ?

In Allplan 2020 you can use this tool without opening the model drawing file.
In Allplan 2021 you can only use this tool if the model drawing file is open.

Allplan 2020: https://youtu.be/GWC4Si1b3VE
Allplan 2021: https://youtu.be/EhyKbweOQeY