I tried to vote for this feature to be added, but the link now goes to an "its closed" page and then suggests we come here to leave comments about it.

My comment is:

I thought QBO did this.  This is one of the reasons I pay for it.  I feel a little cheated that it is not included. 

If the concern is about security and the dangers of variable insertion, why not set it up so that there are fixed incrementing selectable variables (month, year, etc.) with start and stop dates that QBO would handle?

If there is another reason this isn't being added, I think it would help us all if someone would at least tell us why.  Right now the responses from QBO seem to all be cookie cutter.  

When you read their messages its noticeable that they aren't even referring to the specific issue.  The responses could be cut and paste across almost all customer suggestions.