You nailed it, BUT I retraced my steps to wee where I went wrong and I think there is still some confusion on my part. After importing the Music XLM file, I added a player (Lead Singer), The player appears with a + sign next to it - I assume that it’s added to the flow at that point. Then I select the LEAD part from the top drop down and I get a blank page with TACIT on it. Do you see my confusion? Nothing gives me any indication that the player is not added. However, it seems that if I start a new project from scratch the player IS assigned, right? So the behavior is different and that is what is confusing to me.
Also, another thing that I thought might happen is that the Music XLM tracks would merge into the existing Flow that I had already created. I guess Dorico doesn’t work like this. So why ask me on import if I want to merge the tracks? I seems that if they are always going to appear in a new Flow, then there is no point in merging anything. Am I missing something here?
Thanks again for the quick response and you were absolutely right on with your answer!