VideoTrack, Thank you for explanation.
Ok, if there is no simple way to go back to original, ABC style...what about copying the Original ABC bar and pasting to location where I want to "go back" to ABC? Would that change Style/realtracks from whatever previously chosen to ABC? Including all "bar changes" of original ABC?

P.S. I am traveling now and can not test it.

P.S.S. This is probably not the right place, but I think it would make a lot of sence to have a simple, visual track arranger that can be recalled from main screen, to see, navigate and change things visually on time line, an elegant way to get rough sketch out and then work on details.