Hello M,
First off check if either document have existing layers (View/Layer
Properties) so you don't use the same layer names. Then here's an example
walkthrough:
1) With the servers document, if it has already got one add a new layer
named "Servers"
2) Select all the shapes on the page, right click and select Format/Layer...
3) Check the Servers layer and click ok
4) With your cooling sytem document repeat steps 1-3 using "Cooling System"
as the layer name
5) With the servers document, deselect all shapes and right click on the
page and select Copy Drawing
6) With the cooling system document click paste
You should now have two layers with their respective shapes in one document.
One thing that won't transfer is the connectors, which are likely to be the
same for both documents unless you're using something other than the dynamic
connector in the cooling document.
Anyway, let us know how you get on with the above.
Best regards
John
John Goldsmith
www.visualSignals.co.uk