Overwrite values in a column with new data based on Variable Screen Input

Hello Gurus,

Today has been more of a learning experience when it came to working in BPC, for the first time.

I had a series of doubts and rather than posting it one by one, I thought I will bring them all together into one single discussion.

(1) Is it possible to have a Variable Screen / User Prompt for a BPC report.

(1.1) If yes, How do I maintain the Variables for the Variable Screen

(1.2) Where do I maintain them

(2) I have a report that has been setup with Forecast values, and this report is run at the end of every month

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At the end of the month, when the report is run, the report will have data updated for that month.

Report run at the end of Month1 - where Actual data is posted into the report

Kindly provide guidance how to come around this output, I understand for the month end - we need to run the load, but how is it that we can overwrite the Column value Forecast Month1 - Actual Month1, based on the output from the data load; Basically the data in the columns should be overwritten, it could be a Bonus if possible you could tell me how to overwrite Header values as well.

(3) I would like to publish the BPC reports; can we publish BPC excel reports? How can I publish BPC reports?

I look forward to your expert opinions and responses.

Thank you.

Leonel Sachin