The "Trimming by levels" plugin allows you to precisely set the height of the display of your 3D view by levels with a certain shift.
1. Open the 3D view
2. Launch the plugin
3. Plugin settings
In the opened window choose:
Select the bottom level.
Specify a shift from the bottom level.
Select top level
Specify shift from top level
Click "Done".
As a result, we see that our active 3D view is trimmed at the specified levels and shifts from them.