On Thu, 22 Feb 2007, Joseph Doolittle wrote: > I have some crystals that I want to expand without spending a lot of time > drawing each atom. > Is there any way to copy and paste existing stuff? Hello Joseph! There is no copy/paste functionality yet, but I know a useful trick that could help you. Please try the following: 1) draw the structure that you want to replicate. 2) save it into a file ; for example into a file temporary.gpr 3) then, without discarding the structure you have on screen, translate or rotate the structure a bit (select all atoms and use the translate- or rotate-mouse tool with SHIFT held down). 4) un-select all atoms (the popup-menu item Select/Select None) 5) finally, use the popup-menu item File / Open to re-open temporary.gpr you saved earlier ; this will *append* the file to the current stucture so that the appended atoms appear automatically selected. So this file trick actually works the same way as copy/paste! I hope this trick helps (until real copy/paste is added :) Tommi