Hi Mark,
Don't think you can do rolling subtitles, using the subtitle facility, but you can using the title room and applying the chosen position, motion etc to the title.
Choose T tab, pick a template, say business001, drag to title track, double click, choose motion tab (snowflake/star), apply begin and end effects, scroll left or whatever..
Use the other tabs for text formatting etc.
Cheers
Adrian
Life is really simple, but we insist on making it complicated. (see below)
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AMD Phenom IIX6 1055T, win10, 5 internal drives, 7 usb drives, struggling power supply.