When I am working on a downloaded sequence in addition to similar items like megatree to megatree I look for similar count items. I have 4 windows and 6 porch columns so I will look for items that have a similar count and try those when I do not have the same type of model. That would be one reason to have the rgbeffects file or to have a short description of the elements that make up a sequence.
I have also learned to never tell the preview to remove unmatched? effects as the box that says "Part of my Display" gets unchecked and I have had to go back and recheck them manually. There is not need to click yes to that question, since anything that was not completed in the creating the xseq file does not show up in the preview playback.
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