OK, now I see... A drum-roll is NOT a fill-in. Different problem, then.

First solution... Most styles have a simple count-off or pick-up on Intro 1. Start with Intro 1 selected (sync start) and, depending on the style, you will get a pick-up (short fill). If the style you use only has a count-off, you can copy another Intro 1 from a style that DOES have a nice pick-up fill into your destination style, and save as a User Style.

Just want to start with one of the regular fills? OK, to start with a fill in, you start in another variation, don't have sync start ON, you start the arranger with the Start/Stop Button, then IMMEDIATELY hit the first Variation you need. The fill will play and then you hit the chord on the one (or just slightly ahead, like most arrangers!).

Each time you rehearse this, you have to switch ARR Hold OFF, and then back on, otherwise your last chord played the previous time will still be held, but at a gig, when you select the UPG for the song, this will clear out any prior chord info, so it should start fine.

This do...?

BTW, as much as I enjoy helping you out, I would prefer it if, from now on, we deal with these technical things at roland-arranger.com, so that other Roland users can see the Q&A and add it to their own knowledge when they visit. Here, stuff like this drops off the map too fast and only benefits the few... OK?

Plus there, you have a greater pool of knowledgeable Roland users there, so someone else may have an even easier solution for you...!

I hope this helped.