Need to build a animated ex-plainer video creation software with multi level time line editing

only apply those people are alreday working with this type of project . and send your previous working demo of this type of video builder. Programming language - c++ or Pyhton Desktop based application . License for user authentication . keyframe animation white board animetion like hand. Multi level time line edting . user can add multiple photo , multiple video , gif etc. resize , edit and transition effect. background removal , - green screen , white , red etc. Transisation effect for text , photo,video,gif and shape multiple audio addition. Can check below referance image of video editor. If you alreday creater of this type of software . i need Private label rights license(PLR license)