SAP UWL right click on task needs to be disabled

Hi Technoholics,

I am working on portal 7.3 SP4.

While when I click on task, there are set of options displayed like

- Add Note

- Display Details in SAP GUI

- Manage Attachments

- Create Adhoc Request

- View Hostory

- Assign to Me, etc.

We want to disable all the options which are coming on right click of the task.

Seeking an URGENT help.

Regards,

Chinmay J