You can check out @Dimava ’s Merger .
This is the one currently used on Eroscripts afaik and combines multiple funscript axes into a single v1.1/v2.0 format file:
Contribute to Eroscripts/funlib development by creating an account on GitHub.
This tool was also posted just recently:
Resource
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Introduce
Multi‑Axis Funscript Merger is a lightweight Python script that automatically collects all related axis .funscript files from the same directory as the main file and merges them into a single, well‑structured JSON(funscript). The result preserves the main action track (L0) and appends up to ten auxiliary axes (L1‑L2, R0‑R2, V0‑V1, A0‑A2), making it easier to manage and share multi‑dimensional scripts.
Usage
(Python 3.6+ required. If you’re new to Python, just Google…