THESE STEPS ARE OPTIONAL
1. Equalise all colour channels
2. Seperate with ChannelExtraction
3. Apply ABE or DBE to each image (Start with one with most nebulosity) and then save a 'new instance' and apply this to all channels)
4. Recombine images with Channel Combination
For multiple filters you can create a 'New instance' of this using the blue triangle to drop on the desktop then apply it by dropping them over each opened integrated image to crop them all identically.
This process will be each image is identically cropped and therefore still aligned.