Change height of buffer when tiled vertically

[cickes]

Thank you for your work on this. It is greatly valued.

Is there a way to change the height of a buffer when tiled vertically? In drawer mode, opening 2 buffers has them stacked vertically, each taking up 50%. I'd like the top buffer to take up 80% and bottom to take up 20%, for example.

Even more specific, I would like this to happen only when executing a specific command. An example here would be using vim-flutter.

:FlutterRun would open in the buffer window on the bottom, using 20% of the vertical screen, for example.

[lambdalisue]

You can use Vim's native :resize command I guess. Note that there are some issue on drawer mode with 2 buffers #452