Siemens Enhanced Driver - Arrays for Booleans / DBX

According to the docs here:

"...a variation that resembles the syntax used in the TIA portal, with the addition of supporting arrays"

The format, DB.[DB]X[.BitNumber][ArrayDimensions] is listed
And an explicit example is given: DB1.DBX8[8] -> Array of 8 booleans, Bit 0 from offset 8.

Yet, when I try to do this I just get a "Bad_NodeIdUnknown" error
Is there a specific setting I have to change to use this?

Sorry if the answer is obvious, I'm not as close to the controls side of things.

Are you using it in symbolic or absolute addressing mode? and are you sure you have the Siemens Enhanced driver configured and not one of the old ones?