It is possible to copy peaks between spectra that have the same dimensions in common. This is done by copying peaks between peak lists. To do so, start by using M: Peak: Peak Lists and go to {Peak Lists}:
To copy peaks from a source peak list to a target peak list:
Select the source peak list and click [Copy Peaks]
Select the target peak list
Sometimes it is desirable or convenient to first create a sister peak list for a peak list of choice, which can then be used as the target peak list for copying the peaks to.
Peaks can not be copied individually.
Copy peaks between or within spectra through peak lists
M: Peak: Peak Lists
{Peak Lists}
Select a source peak list and click [Copy Peaks]
Select the target peak list