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Not sure if I really got the problem ....

 

 

But you can reference a File and bring it into your file as a Viewport on design layer.

AFAIK you can create multiple Viewports from that file.

And you can move/position these viewports where you want.

 

What does only work in 2D is a Viewport Crop.

 

But if I got that right and you just want to copy a referenced building file,

multiple times on your site plan, I see no problems.

You can adjust their Viewports in XY and Z height as you want.

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It all depends...

 

Is it scenario..

 

a, a site plan with multiple buildings all of which are identical

 

or

 

b, a site plan with multiple buildings, all of which are different?

 

or

 

c, a mixture of the two?

 

In scenario a, the viewport route works well, as @zoomer suggests, though we also use symbols.

 

Viewports do not need necessarily to be from referenced design layer viewport.  You can also use layer referencing and use what I refer to as an 'internal design layer viewport' i.e. dlvps created from local active and referenced layers.

 

In this scenario the dlvps of the building(s) are behaving like symbols, or components of the site, and can be placed, duplicated, rotated and moved, in all dimensions to suit.  We find site storeys particularly useful when building up a site like this as the viewports are placed on layers that are linked to strategic site levels.

 

However, we would also use symbols too either as parts of buildings or floors of buildings if there is a lot of repetition although there are limitations to this approach necessary to avoid disappearing up one's own BIM orifice!

 

In scenario b, each building 'should' be drawn/modelled in the correct place on the site, including where it sits in the Z axis, since unlike scenario a where you are dealing with repetition and the model of the 'typical' unit is used for construction of that unit, you need to be able to reference the site to it.

 

All building models in scenario b should ideally be located around a common internal origin so that when you reference them together they all arrive in the right place and at the correct height, or more importantly when you export them as individual buildings they are issued to others in the right place.  DLVPs will also export but you have an extra level of management naming each viewport, otherwise they get exported as 'Viewport-1', etc.

 

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