Here’s something for anyone working in Flash. Four extensions I searched out from various sources (then packed in two formats for different Flash versions):

• Distribute to frames: everything on the selected layer is put into a separate frame- especially handy for image sequences
• Frame dupe remover: removes unnecessary keyframes
• Frames to symbol - copies the whole selected timeline into the timeline of a symbol… which saves a shitton of faffing about. The above screenshots relate to this one.
• Symbol to frames - does the reverse

I’ve personally used them across several Flash versions