Section 2. The Spline Context Menu
rdSplineTools displays a section in the splines context menu, right-click on a spline point and you’ll see the rdSplineTools section at the bottom.
The options you’ll see depend on how many points you have selected. If you have more than 2, you’ll see:

1. Straighten Points
This tool straightens all points between the outer two selected points, all tangents are reset – Spline Blueprints (such as rdRoads) can take advantage of this and add Instanced Static Meshes rather than SplineMeshes.
2. Split Spline Section (when more than 2 points in the spline)
Splits the Spline at the selected point.
3. Set Height to that of the First Selected Point
This options sets the Z position of the selected points to that of the First Selected Point.
4. Set Height to that of the Last Selected Point
This option sets the Z position of the selected points to that of the Last Selected Point.
Otherwise you’ll see:

1. Split Spline Here
Splits the current spline into 2 at the selected point.
2. Split Spline Nearest Section
Splits the current spline into 3 with the middle section being the selection. If the selection is at the start or end, it’s split into 2 sections.
3. New Spline Here
Adds a New spline as a child to the selected spline (moves with it) and sets it perpendicular to point.
4. Set Height of 2 adjacent Points
Sets the Z position of the 2 splines points on each side of the selected point to that of the selected point.
5. Set Height of 4 adjacent Points
Sets the Z position of the 4 splines points on each side of the selected point to that of the selected point.
6. Set Height to Landscape (offset)
Sets the Selected Points Z position to align with the landscape.
7. Copy Spline Data to Clipboard
This is the same as the option in the Actor Menu, copies the Spline data as text to the Clipboard.
8. Create Spline from Data in Clipboard
Recreates the Spline from the text data in the clipboard.