Contextual Options Menu in BI Launch Pad

Hi,

I am doing SAP Business Objects BI 4.1 SP4 configuration and I am experience a small hold down.

In the "Documents" section of BI Launch Pad, when I "Right-click" on a Webi report Object, I see "Categories", "Document Link" and "Mobile Properties" in the contextual menu options.

I don't want some of my users to see these options to avoid confusion or incident on these features.

Can someone help?

Thank you.