Yes, the notes will be pasted on themselves first, but after that they can be freely moved to wherever you want. Doesn’t that work for you?
I'm not sure what you meant by the second bit of advice.
Let’s say you have recorded a singer in Logic. Copy the vocal track to a new audio track in Logic. On each track you insert a dedicated Melodyne plug-in instance and transfer the audio. Now you can edit both voices independently. Moreover, each track will have its own mixer channel which is advantageous if you want to mix them differently, e.g. different volume or stereo balance or FX settings. If, on the other hand, you build all harmony parts in one Melodyne window only, all parts would share the same mixer channel.
I'm also getting a sort of out of sync audio when i save my Melodyne editing as an Aif but not when I save as a Melodyne project, and the project doesn't always seem to save the changes i've made when I play it back in Logic. Do you know what I'm doing wrong? (I'm not using it as a plug-in)
So how exactly are you using Melodyne, if it is not the plug-in? Also, have you got tempo changes in your Logic song? Which exact Logic version is this? Are you familiar with all the options in the Save dialog
, e.g. the Cycle only option? Is the sample rate in Melodyne the same as in Logic?