Yes MLS provides a similar look ahead tool but it just takes raw dollars/guesses. It doesn't calculate a precise estimate from the 2 previous quarterly reports that a clerk has already entered.
Some notes:
- The fields that rarely change are locked.
- If a stake allocates more or less of a percentage to a ward (i.e. line 5), the password to unlock the fields is "liahona1" for adjustment to match your allocation situation.
- i.e. My stake allocates 71% of sacrament meeting attendance to the ward and 100% for other categories.