for the purposes of this lets assume I have been working in word on a document and have been copying and pasting text from another source (word, excel etc) now it dosne’t matter how I copy the text (CTRL +C, right click and copy, or file edit copy) I have tried it all ways with the corresponding paste command. This text stays in the clipboard.

when the stationary app is run whatever text was last copied is appended to the end of the template. This is the same if the default stationary is automatically used (no selection dialouge) or if you choose from the list of available templates.

if watching the clipbaord viewers (clipbrd.exe)you can see the stationary come into and out of the clipboard as the app runs, but the original content stays in.