Filter/Split Broker Holdings

Currently when importing Stocks into the Portfolio for an entity, you are able to select in the individual buy /sell orders the nominated broker (In my case Westpac & HUB24). However at a holding level under the settings there is only one field for the broker which in my case is set to Westpac. Therefore when viewing the stocks (even when set to stock split) any stock units that exist in both broker accounts are being grouped as a single holding. There is currently no way to filter or create groups so that these can be viewed respective to Broker accounts. Can you create a function that allows use to view the split holding & dividends via each broker.