[Feature or Bug?] Allow twist on non-main slope roads like the original mod

[AtelierAmber]

Reference images:
Original Node Controller:

Node Controller Renewal:

In the original mod, twists were allowed on non-main slopes. This allowed for roads to "inherit" the slope of the main road and modify that to fit the needs. In the pictures above I have an intersection that slopes upwards and the two side roads are initially sloped and gradually flatten out. The intersection is a compact diverging diamond and sloped exits and entrances are common.
The "twist" parameter does nothing for non-main slope roads which makes me believe it's a bug, but if it is not a bug, it should definitely be implemented.

[s2500111]

Also, a button to slope all and not only two roads at an intersection would be great.

[mdpkh]

It is my experience that, when working as designed, Node Controller 3 automatically sets the twists on the "non-main" segments so that they match the adjacent main segments in height, which had to be done manually in original Node Controller. So it should look much like your top picture. However, if a segment is added to a node after it has been set to "sloped", Node Controller 3 does not consider the existing slope settings when setting the new segment's parameters. This can be easily fixed by switching the node to "flat" and then immediately back to "sloped". In most cases that should be sufficient to produce results similar to the old Node Controller.