use the PI AF automatically publish the calculation value to PI

Here is my case,

I have a few tanks which need to calculation its material mass. I had created the AF template and element for them. Use the data reference function, I could calculate the material mass and volume. In previous AF (1.x), I know it has a function of automatically run the case analysis. This means it could publish data to some specific tags. In the current version PI Af 2010, I want to use it to publish back the result to PI system. I know the case analysis could be configured as perodic.

My question is ,

1. what else add-in of AF is required to accomplish this automatically publish function?

2. Is that possible to publish the data with a specific timestamp? Say the same timestamp to its input PI tag.

Thanks in advance.