There are several constraints about this component:
7 The Status pane has two parts, the server-owned subpanes and the client-owned subpanes. Applications cannot define new layouts or alter server-owned subpanes.
7 The server-owned subpanes run in the ROM of the device, and this is reserved only for the system to indicate device's statuses.
7 Lets think about if more than 2 add-in applications want to have their permanent indicators in the pane, the physical area is not enough for displaying them all time.