Here is a link to the ‘Model organisation Guide’
There are 4 levels of nesting, the idea with this component (Because inserted through 3D Warehouse, it is a Component) that you explode it first and then make a group of it, representing a Level of the building.
You can make copies from the first and name them level 01, level 02 etc.
When you dive in, you will come across these levels of organisation:
Level-Element-Location-Condition
Every level has 25 building elements (window-doors-walls etc.)
They all can have two locations (Interior or Exterior)
Which can have three conditions (Existing, New, Demolish)
Resulting in a number of ~30 Layers (Some more needed for other stuff)
The last level of the Model Organisation Guid-component is locked, in order to ‘drill’ down to the deepest level.
Say I have drawn a window that is existing. Once drawn, I group it (No worries, all entities on Layer0 and even the group stays on Layer0). I would then Cut the window.
Now I keep clicking on the right button in the Model Organisation Guide untill I reach the deepest level.
Hit the shortcut for ‘paste in Place’ and the window is in the right group!
This whole setup is to reduce the number of Layers, where Other Cad software often has a layer for each element, in a certain place and level, and even condition, when you do the math, you can organise Number of Levelsx25x2x3 = 150 Layers per Level of the building!
If you want other colors, you would need to place the Window on a higher level (and adjust the color of that layer) or change the color, thus loosing some information about the location and condition…