Awesome Darren. Few comments. So the replace QD you posted works great, but I'm going to mention again how much I love the replace from Clipboard and how I'm going to have to try to merge these two, but I understand why you might not want to post an improvement on someone elses code. Being a representative of NI, I suspect you can't just take someone elses code, change it and then recommend using it. Still I love both of these features and want them together.
Secondly I noticed the insert doesn't work quite as expected for CTRL + I, when multiple wires are selected. Not sure where to best voice the issue I saw. Lets say you have two error wires selected, and you want to insert a subVI on each of them. If the function is in the palette you can type it and press CTRL + I and a copy will be inserted on each wire. But if you have both wires selected, then type "sav" and CTRL + I and pick the file, it will insert it on the first wire, then prompt you again for another file to insert on the other wire. I'd expect it to work like the normal insert, where the same VI is inserted on each wire and only be prompted once for my file selection.
Note that this is how the improved replace function you posted earlier works, where it replaces the selected nodes with a copy of the VI selected from the dialog.