This extension lets the user subdivide paths into new paths.
It's similar to the prebuilt 'Add Node' extension, with the additional ability to choose subdivision unit
and to create new path objects from the subdivided segments.
The new path xml Ids are inherited from the source path.
Copy split_bezier.py and split_bezier.inx in the user extension folder. The extension folder can be found from Edit->Preference dialog in the System option. You will need to restart inkscape after the files are copied.
The 'Subdivide Path' effect is under Extensions->Modify Path menu. You can choose multiple paths and invokde the extension. Selecting the 'Break Apart' check box will create new paths from the subdivided segments.