revit '09: export in dwg format

[ApA]

hello to all
I am a novello attendant of the forum, which often finds here ideas for their work, but that this time needs a valid help.
I am practicing with revit version 2009, but I have a problem with exporting files in dwg format.
I press that I often do planimetries by importing and connecting in the main file external revit files (for simplicity I call them "blocks").
But I can't export my plant as a single dwg file, without forging an endless row of files, one for every "lock". the online guide previews this option (presents this in the version of revit 8), but I just can't find it once I need it.
Thank you.
apa

 

[gfrank]

from revit online guide (2010 and 2009):

when exporting a revit view in dwg or dxf format, each category of revit is associated with an autocad layer, as specified in the export layer dialog box. in autocad, the layer controls the display of entities (revit elements), including its colors, line thicknesses and line styles. in revit architecture, object styles are defined in the object styles dialog box. see styles of objects. the layer and property setting determines the management of a revit element if this includes attributes (sets of objects) which differ from those defined for the category to which it belongs. in autocad and revit architecture, the graphic components of the specific elements of the view are called replacements.

select one of the following values:

property category bylayer, byentity replacements. when a revit element is exported with specific visual graphics, in autocad differences (replacements) are applied to the single entity, but the entity is located on the same layer of the other entities in the same category of revit or in the same layer of autocad.

all properties bylayer, no replacement. when a revit element is exported with specific visual graphics, in autocad differences (replacements) are ignored. the entity is located in the same layer of the other entities in the same category of revit or in the same layer of autocad and the unique attributes of the entity are not maintained. this option assigns to all entities the display properties defined by its layer. produces the least number of layers and allows by-layer control on the exported dwg file.

all bylayer properties, new layers for replacements. when a revit element is exported with specific visual graphics, in autocad the entity is placed on the layer in which it is located. this option allows by-layer control on exported dwg file and graphical intent is maintained. However, it involves increasing the number of layers in the exported dwg file.
For example, it is assumed that in a revit architecture project most walls are displayed with continuous black lines and line 5 thickness and that in a floor plan the graphic specific element of the view for a wall has been modified so that blue dotted lines and a line thickness of 7 are used.



in this case, when exporting the view in dwg or dxf format, in layers and properties select:

bylayer category properties, byentity replacements: all walls in this category of revit, including the blue one, are assigned to a layer in autocad. however, the blue wall retains its unique attributes (blue, dotted, line thickness = 7) as autocad defines them by entity for that wall.
all properties bylayer, no replacement: all walls in this category of revit, including the blue one, are assigned to a layer in autocad and the unique attributes of the blue wall are not maintained. in autocad, this wall has the same look as the other walls in the layer.
all bylayer properties, new layers for replacements: all walls in this category of revit, including the blue one, are assigned to a layer in autocad. the blue wall keeps the attributes, but is assigned to the layer in which it is located.