ThreeJS Mixamo Timeline Animation System

Hello We are in need of a one-page system built on THREEJS Main Panel: In this system we're looking to import one or many Mixamo "Skinned" character(s), then import one or many Mixamo "Without Skin" animations bind these animations to imported character(s) of choice, then organize these animations in the timeline panel. Timeline Panel: when a character is selected from the main panel, timeline panel will show appropriate timeline bound to that character. We want the ability to change the position, rotation and scale of the character in the main panel and update keyframes, we also want the ability to drag animations left or right on the timeline and scale animation to run fast or slow. same for the cameras and lights object. Each animation should blend ease into next. Properties: properties panel should be displayed on the right side, here we will update any scale, rotate, position etc. also the ability to toggle helper objects on/off. Overall: we want to be able to generate a project file that we can save and load when needed. we want to save the scene as object to be imported into blender for rendering Please only use JavaScript, jQuery, [login to view URL], HTML5, because we want to keep things lightweight. Background: I want to make small videos for children, all this I have been doing in blender but I discovered that in threejs things are much easier if I can have a system based on my requirement 10