Development tools for Zephyr on STM32Workbench for Zephyr: VS Code extension to set up, build, flash and debug Zephyr applications on STM32.Devicetree manager: browse, edit and visualize Zephyr devicetree, STM32CubeMX-like for Zephyr.
I'm not sure that I had understood your request.
Did you ever tried the actions of "export", "import", "Open Projects from File System" under menu "File" ?