Welcome to the exclusive world of Xpression!
The way we've achieved something like this in the past is by using a script. I'm not familiar with Dashboard based workflows, but we use a lot of datalinq driven workflows. We've done the following by applying the script below into a text object's OnSetText event:
dim AC as xpAnimController
Scene.GetAnimControllerByName("AC_ScoreUpdate",AC)
AC.PlayRange(0,30)
This is taking an animation controller that you've animated (what's happening in that AC is entirely dependent on what you need it to do)
Alternatively you could do something more elaborate by utilizing a Scene Director in which the script would look virtually the same just using a different object and method:
dim SD as xpSceneDirector
Scene.GetSceneDirectorByName("SD_Refresh",SD)
SD.PlayRange(0,30)
#XPression