Ok watched the video
I must of missed the slip edit bit because it makes sense now
firsly I would ask tim from sws for a action to turn off autofades for the start an ends of items (or better yet get the devs to add it
secondly the paste without fades is easy.
Create a custom action
-paste
-sws: set fades of selected items to 0.0
that should work since pasted items are normally still selected.
I might need to watch your vid again when I have time but I have this underlying feeling that your going too far down one certain route and missing a much easier way to do it
will try and get back to you on that though, I really think you should start a feature request though as having an option to have the default fade in out times permanently set but just be able to turn them on and off (like auto crossfades) would be great for a lot of people.