Future balance question

[Fred Bone]

On 23 November 2010 at 22:19, Ian X Waddington said:

[...]
> Also, currently, as per another post I made yesterday I do not seem to be
> able to add any of the scheduled transactions in advance of their due date
> anyway so this make the above impossible anyway.

Most of my SXs are entered either 14 or 30 days in advance. What do you 
mean by "do not seem to be able"?