Hi
At the start there is always Sequence 1 in the bin. (Its a dummy)
Now...Assemble your clips on the timeline. Sequence 1 will reflect the timeline by showing a thumbnail but will not be a sequence. It will still be a dummy.
Now click "Sequence" followed by "Add" (or "New sequence"). This will clear the timeline and VP will properly tranfer it to Sequence 1 and then create another dummy sequence (Sequence 2). NOTE: At this instant Sequence 2 will be empty since the timeline is cleared and so it will simply display a clapperboard icon.
You can now if you wish, drag Sequence 1 (which simply behaves like new clip) down onto the empty timeline where you can edit/add to it etc. The dummy Sequence 2 will still be a dummy but as at the start will show a thumbnail of the timeline.......Both the items in the sequence bin will therefore appear the same.
REMEMER...The last sequence in the bin is a dummy. If you try to add this to the timeline it won't go and you will get the message "You cannot add a sequence to itself" Think of it as actually being empty although in practice VP keeps it up to date with the timeline contents in case you actually want to use it hence the message context...it's simply a stored copy and cannot be used.
To make this a bit clearer and to show it IS a copy, add a new and different clip to the start of the timeline...The last sequence in the bin (the "dummy" ) will show the new clip as the thumbnail. 🙂.....although it's not yet a new sequence.....an unusable copy.
In the above scenario Sequence 1 is a real sequence (a new clip in effect combining all the clips on the previous timeline). As such you can add it to the new timeline as many times as you wish just like any clip and even create another new sequence.This will become a Real Sequence 2 whilst Sequence 3 will become a new "dummy" and so on.... In this way you can "nest" sequences.
Nat