Nice work. Something I've wanted before, but I'm a little confused by the UX. I upload a gif, select a frame, modify it. But then I seem to only be able to ad

Nice work. Something I've wanted before, but I'm a little confused by the UX. I upload a gif, select a frame, modify it. But then I seem to only be able to add it to the end of the gif? Changes are not made to the existing frame. And I don't seem to be able to change the order of frames (ie: move the modified frame to it's original position). I recently used this tool (https://ezgif.com/add-text https://ezgif.com/add-text), which got the job done. The most useful feature on it was the capability to set "x frame to x frame". ie: add text from frame 25 - end or 25 - 40. The combination of your layers feature, plus frame x to x, would make this quite productive.