Thanks, Adrian for responding so quickly!
Does that mean that if I want to insert the slideshow somewhere in the middle of the final video, I should split my current video project at the point where I want the slideshow to appear in the final product, thereby ending up with three finished products to be eventually tied together sequentially? (Ouff...long sentence...
BTW, the audio track will not be an issue, as the video is of a fishing trip which was a bit short on water footage, and I wanted to fill the void with pictures.
Good work on your tutorial on Project Planning! I would have used the concept of sub-projects if I hadn't decided halfway through the project to add some still pictures...My bad...
...The older I get, the better I was...