Copy/Cut and Paste

Basic:

 • Select the elements to be copied/cut
 • Ctrl + C/X
 • Move to target location/model/file
 • Ctrl + V

The elements will be copied/cut and then pasted by the geometric centre of the selection.
This generally involves another move for correct positioning.

Ninja* with AccuSnap:

 • Select the elements to be copied/cut
 • Ctrl + C/X
 • Hold down Ctrl + Shift [to activate AccuSnap]
 • Use AccuSnap to pick the copy/insertion point
 • Move to target location/model/file
 • Ctrl + V

The elements will be copied/cut and then pasted by the selected copy/insertion point.
This allows correct positioning first time.

* the original post describing this function called the selected snap point the Ninja point!

Ninja with Tentative:

 • Select the elements to be copied/cut
 • Tentative [default setting simultaneous click left and right mouse buttons] snap to copy/insertion point *
 • Ctrl + C/X
 • Move to target location/model/file
 • Ctrl + V

The elements will be copied/cut and then pasted by the selected copy/insertion point.
This allows correct positioning first time.

* Tentative snap shows a large solid crosshair when it successfully finds a point, a dotted cross hair when in empty space. The active snap obviously determines the points being snapped to. As AccuSnap is not involved the Active Snap Mode icon will not be displayed at the cursor.

By Reference:

 • Open reference dialog
 • Attach [source file if it isn't already]
 • Select elements
 • Pick Copy tool
 • Identify point to copy from
 • Identify point to copy to

If the file containing the elements is already attached this is the quickest method for a single copy.

Multiple Copies:

If you are going to place multiple copies the chances are:
 a) you will be interrupted and inadvertently drop the copied selection
 b) Later that day find you need to make another copy

So:
 • Open your project cell library (what do you mean you don't have a project cell library?)
 • Select the elements
 • Place a Cell Origin
 • Click Create
 • Go to whatever models or file s that you need to place the copy into and place the cell.

The following day find out that changed project requirements mean that all of the copied elements you placed are out of date.
 • Congratulate yourself on having decided to use cells so you don't need to redo everything.
 • Edit the cell in your project cell library.
 • Use the Replace/Update Cell tool to update all the instances of the cell.

Copy relative to 0,0,0

The absence of a tool to copy elements from one file to exactly the same location in a new empty file has been discussed in several forum posts. There is not, as far as I am aware a simple command to do this. A couple of VBA scripts have been posted and various methods discussed.

If the concern is to place the copied elements exactly I would expect users to place them relative to a grid or other setting out point(s) available in project wide reference files rather than relying upon copying relative to a virtual origin.