Zimbra task - add subtasks?

[SkyHiRider]

I'm missing a feature to add subtasks to a taks. Let's say I have Install Zimbra as a main task:

Install zimbra
-- install server
-- secure server
-- configure zimbra
-- deploy zimbra
-- test zimbra

It would be great to divide one larger task into several smaller one and sequentially mark parts of the task as done. If all subtasks would be done then the main task would be magically marked as done too!

[jonallport]

I think that may be asking too much from a simple 'to-do list' feature.

What you describe is getting towards a work breakdown structure (WBS) - much beloved of project managers. Have a look at OpenProj, or something similar.