Improved Onion Skin Functionality

Hi

I was trying out some traditional animation in FlipaClip today and it occured to me that the Light Table (Onion Skin) controls are a little limiting. I want to be able to mimic the techniques used on traditional animation light tables, where I can add and remove drawings at will, so I can easily swap between working on extremes, breakdowns and inbetweens.

So, I need to be able to toggle any previous or following drawing on and off, and preferably be able to adjust the opacity of each drawing individually. I have included a drawing to illustrate what I mean. I hope it makes sense.

Additionally, if it were possibles to add a Light Table on/off toggle to each layer, that would be superb - as with two or three layers in use, the onion skin drawings can get quite busy and difficult to read.