The blend file is for archviz, to produce a set of stills.
I use scenes to organize dispayed / hidden objects and lights. Each scene will have one or more cameras.
“Animation” markers and frames help me organize my cameras for previewing inside blender interactively and in render production, where I send a set of stills for rendering, starting Blender renders from the command line.
Can I somehow have one timeline and “skip” through the related scenes? that would be useful inside blender to preview the sequence of frames without having to manually select scenes.
I think the answer is no. It doesn’t look to me like Blender is setup for this concept, its logic is different.
So please feel free to suggest a different approach for the same goal, in a way appropriate for Blender