When exporting to an image sequence from an AE comp, allow 1) custom start frame numbers and 2) getting frame numbers from the composition
Example: If I exported an image sequence 1000 frames long, but decided I wanted to replace frames 50-100. I could select those frames as my in In Point & Out Point and click a box that says "take frame numbers from composition" or something, then the exported image files would be called XXX0050 - XXX0100 automatically.
Joshua Rutter commented
Still not fixed since 2014? Earlier? They obviously don't care. Photoshop on a phone is more important than their software allowing proper rendering in a professional workflow.