usefull macro for coping fields

[pksa]

May anyone help me with simple macro.
I need to copy start/finish dates from subordinate tasks into start1/finish1 fields of their summery task.
I would be grateful if I get idea, key methodos or an example of mackro.
I'm doing that to achieve very compressed view of gantt chart that shows only summery task but withing the summery task bar I need marks for main milestones. Still in one line.


Here are details:
All summery task have the same set of "i" tasks.
"summery task"
"task-1"
.......
"task-i"

"summery task" has i pairs of "start-1/finish-1".... "start-i/finish-i" fields defined.

for each task copy its' start/finish dates to related fields in the summery task e.g.
taks-2.start to summery.start2
taks-2.finish to summery.finish2

THe operation has to be fulfilled for all summery task in the project.

Perhaps you can point out good link to web site where I can aquire some knowledge in this subject

thanks in advance