so, I reopened Konsole to your new split views...
but...
it just behaves like regular KDE's Konsole.
I did split vertical, obtained 2 mirrored view of the same console.
then I tried split horizontal, it turned the 2 vertical views into horizontal split and added a 3rd view of the same terminal... I know this is not you, its just the way Konsole is... OMG ... but who thought this would be normal behavior...
so, I reopened Konsole to your new split views... but...
it just behaves like regular KDE's Konsole.
I did split vertical, obtained 2 mirrored view of the same console. then I tried split horizontal, it turned the 2 vertical views into horizontal split and added a 3rd view of the same terminal... I know this is not you, its just the way Konsole is... OMG ... but who thought this would be normal behavior...
so, how do I activate your new split feature?