How to create Notes at aggregate level

Hello APO experts,

We use SAP APO Demand Planning .

Our planners use Note management functionality to enter the notes for various purposes. (Like, in a particular month if we need to increase the Forecast because there is a  project going on in that particular month , they enter the Note so that they will know what is going on why the Forecast was high at that time etc..)

When applying Notes to an item/plant , the planner needs to be able to apply at the aggregate level . Like, All items in a Plant (OR) All locations stocking a specific material . Is it possible to achieve this requirement?

Thanks,

SV