So you must be sending the continuous camera original to Resolve as a single clip… I am not clear if you are attempting to razor the original in FCX or not and sending an XML to Resolve.
As an XML-flow project, you should be seeing two sequences in the Conform page. The Master Timeline contains all the source media as it exists in the Source Bin, uncut. There should also be a “cut” sequence, which would contain all your razor “notches” (what we used to call an event boundary in Renaissance, etc.). Opening the cut sequence in the COLOR page should still have those boundaries, but because the source clip is the same for all the events, they will be linked. You can break the grouping and grade them all individually as if they were independent clips at that point, and render them out so that they behave like independent clips (which they will be, in Source mode). You do also have the option of creating razor cuts on the timeline in the Conform page, which still need to be unlinked, or as has been suggested a number of times, remote or local versions.
If you only have a master timeline in Resolve, you can create a new sequence, which will be a clone of the Master Timeline, and the new one will be editable, as the Master Timeline is not.
There is absolutely no need to render multiple versions of the source clip to realize different treatments of the media within that single clip. Keyframes would also be an option, if you want to keep the entire clip intact as a single entity.
jPo
“I always pass on free advice — its never of any use to me” Oscar Wilde.