Slur Across Flows

Is there a way to slur an instrument’s phrase from the end of one flow to the start of another?

It is not important, but here is why I would do it.

  1. I write a piece with one flow.
  2. When I create a video slide show for the piece, sometimes I need a screen with a short synopsis or set of program notes at the start, lasting 20-30 seconds.
  3. I can create an alternate version of the music with added bars, but it seems neater to add a short alternate flow at the start. In this case, I may want a slur on one or more parts from the end of the introduction to the start of the main piece.

I known this is an odd request. If it’s impossible, I will stay with plan B.

The only way that I’m aware of is a fake single slur..
Insert one slur at the end of the first and another at the beginning of the second flow. Then adjust them in Engrave Mode to look like one slur across flows.

Thanks.