Extract CAN signals from Message list as array

Hello,

I have series of CAN message objects containing a variety of messages, each carrying several signals (in the 100,000s of elements each) from previous recordings. I also have the corresponding database so I can convert to physical values (volts, rpm...)

Here is what I have managed so far:

Attach the database to my Raw messages:

attachDatabase(AllMessages, db);    %AllMessages = large log of mixed CAN messages, db = my database

Extract a single message ID into a new object:

Extract_BMS = extractAll(AllMessages,'BMS_RN1');    %Returns a CAN message object with only 'BMS_RN1' messages

Access all signals from a single message as physical values: (in this example, message number 4321)

Extract_BMS(1,4321).Signals

ans = 

  struct with fields:

           HVIsolationImpedance: 1000000
    BMS_InterlockHVconnector_v2: 2
        BMS_HVNetworkVoltage_v2: 374.5000
         HVBatInstantCurrent_v2: 3.6250
              HVPowerConnection: 1
    BMS_InterlockServicePlug_v2: 2

Acces a single signal physical value:

MyVoltage = Extract_BMS(1,4321).Signals.BMS_HVNetworkVoltage_v2    %Extract voltage from frame 4321

MyVoltage =

  374.5000

However, I can't find an elegant way of returning a large array of physical values, something like this:

>> VoltageArray = Extract_BMS(1,1:999).Signals.BMS_HVNetworkVoltage_v2
Expected one output from a curly brace or dot indexing expression, but there were 999 results.

I could make a loop for each signal in each message and fill arrays element by element, but there has to be a better way. It might just be me not being very experienced with structures.