Custom Sectors
To create a custom sector you will need to click on the "Create New" button just to the left of the sector drop down box.
From the custom sector management you can select the universe from which you wish to build the sector (this can be a custom or standard universe).
If you either create a sector from scratch by selecting Fund Managers and their funds and add them to your sector, or you can add an existing sector and edit it by removing or adding more funds individually.
Once the sector is complete, you can save it via the File menu which will prompt you to give the sector a name. The custom sector will now appear under the custom sectors heading in the sector list when you are building your active list.