Another Synfig tool (1) … ‘again’ from Russia 
:
SIFscenarist allows you to assemble animation Synfig projects is much faster and easier.
You only need to create a script using the easy interface or manually.
It is created using QT library.
SIFscenarist (at) sourceforge
SIFscenarist Web Site
–> never test it… some experiences?
[–1--] ImageListImport, Sif2Svg, Svg2Sif, SifPlayer…