How to Make Zoho Projects archive completed projects or adding start date of each task automatically

How to Make Zoho Projects archive completed projects or adding start date of each task automatically

Hello Everyone

I have two questions and they are very important.

1- I completed projects and still able to see them in viewing mode, How can I make zoho archive them or aleast move them to completed project (unactive).

2- I want to make zoho add the start date of each task automatically when I add the start date for the projects and also want to make it in sequence for example:

first task start from date 22-8-2023 and due date is 24-8-2023 (I added before the duration for this task in the template so I understand the calculation)

second task continue from 24-8-2023 and so on

How can I do that?