When developing a project, a user very often uses the same project map viewpoints many times as different views, using different scales, pen sets, layer sets, model view options, graphic overrides, renovation statuses... However, when saving a view in view map, ID cannot be automatically assigned as a different value from ID in project map. Meanwhile, in layout map, you can freely assign hierarchical automatic IDs to any layout within any subset, or you can define it manually.
When placing drawings, it is easy to place the wrong view from view map because it is often assigned the same name regardless of the subset it is within. Thus, the drawing list is somewhat useless unless you take time and dilligence to edit all IDs manually.
My workflow is to have a subset in view map for every phase of the project, and within it, subsets for types of drawings: floor plans, sections, elevations, drawings (of all kinds) used for analysis... Ideally, I would automatically assign an ID as <PHASE>.<TYPE>.<PROJECT_MAP_ID> or whatever would be intuitive in a certain project. Unfortunately, while subsets in layout map have plenty of options to do this, you can do basically nothing with subsets (folders) in view map and project map.
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