With all the required elements selected, press F5 to view only these elements in the 3d window, and save it as a view.

In the 'Selections' palette double click on each of the saved selections in turn this will cumulatively select all the elements previously selected in the floorplans. Turn on all the layers and go into the 3d window. Save the elements selected on each storey as an individual selection set in the 'Selections' palette. In combination with the Find & Select tool and the marquee, go through each of the 2d floorplans and select everything that you would like to appear in 3d. Has the use of 'selection sets' with the 'Selections' palette been considered yet? See how it's all or nothing?Д«ut I'm still willing to accept there is a way to do it and it's evading me. The second pic shows 3D started from the 2nd floor by navigating there from the cloned folder. The first pic show 3D started from the 3rd floor by navigating there from the cloned folder in the view map. But it seems in the model space AC can't and it really is a limitation of AC as the experiment is showing. I've never set up a 3D document before like that, but I'll trust you that it can be done there. Mind you I'm only talking about the area where you place objects and draw lines and cut stuff and model this and label that. If you start 3D from the 2nd floor, only the wall layer will be visible and the slab layer for all the stories will be shut off. But if you are in either the 1st or 3rd floor when you start 3D, all the layers will be on. Now, if you go through the views, in 2D, this will work. Now open up the 2nd floor settings and set the layer combo to wall. Go to the view map and clone the story folder. On each floor, draw a wall and a slab and place them on their respective layers.

Create three layer combos, all, wall, and slab. Make two layers, wall and slab (my original experiment was balls but for simplicity sake.). But its easy enough to do.Дelete all your layers and views. I would post it but I can only get the file down to 650k and the largest file you can post here is 256k. I made a little project to test it because being able to selectively show layers per floor in 3D model space is advantageous to me. In 3D model space, layers are universal and are either on or off. In model space, 2D you can separate the stories and have different layers visible. That's why views and the resultant advantages of them won't matter.

Softplan 13 turn off layers