Hi,
Apologies for the slow reply, we missed this one. Please try the following.
- In the Transform node, set the X Alignment to Pivot.
- Export the X Size attribute of the Frame and the X Fixed Size input of the Transform node. Wire them together.
- In the Transform node, enable Override Size and disable Scale Segment.
- That should take care of most of it. Depending on where the pivots were located in your source segments, you may also need to adjust the X Fixed Transform a bit to compensate.


A sample file is attached.
I hope that helps,
Paul