If your GNC 355 is connected through the ARINC interface you will have two tabs shown in the Flight Plan. The flight plans are independent of each other and the Skyview will fly either one. You direct which one is flown by choosing it with HSI Source on the PFD. The box to the right of the HSI on the PFD shows the HSI source in use along with the name you gave it. Below the HSI source box is a smaller box showing what the RMI needles are indicating (pointer 1 & 2).
I have a feature request in to do exactly what you are asking. I consider it a safety addition as well. I started a new thread describing it "Feature request: Copy flight plan". Take a look and if you think it meets your needs let Dynon know in the thread. If others read it and agree, we could see the feature added in a firmware update.