BO4 - How to fold a break and hide a column in a block

Hi,

We need to have break in report but would like to fold so only shows summary line (break footer).

Could do this in xir2.

How do we do thi sin bo4 webi?

Also, we want to be able to hide ceratin columns in a table.

Could format block in xir2 - how do we do this in bo4 webi?

Thanks