Changing automation adds nodes

Working with Cubase 11 on Windows 10.
I want to automate the level so I show automation and makes some level adjustments. Decide I want to change those adjustments.
Capture1
Cubase doesn’t raise the area I’m trying to adjust without first adding nodes to the current location of the nodes being adjusted.
Capture2
Below is what I wanted. (I had to delete the nodes left in by cubase to get this.)
Capture3

Please note I only made these cubase images to show the issue. This is not a real song.

Regards,
David G.

Select the lower nodes, go to the info line and raise the level there (mousewheel or typing). Or hold shift & and drag the nodes up.

The extra nodes appear when the range tool is used or when there are nodes selected plus mousewheel turned. I think that’s regarded a ‘feature’ (indeed a cool function sometimes, for me in most cases not what I want).