Sepura STP8040 (STP8000) show volume on home display?

Does the STP8000-series support showing of volume down in the middle of the homescreen, in such a manner that an STP9000 does?
I tried creating a STP9000 template, but didn't find anything there that would enable or disable it.
Neither did find in a STP8000 template anything similar.

However, it seems like STP8000 does not support grid menu?

Huargh.
It's not shown on the STP9000 display either all the time. I recalled wrong.
On V10.14 the volume level meter is down in the middle on the display, V10.21 changes it to a vertical bar on the left of the display.