I'm having some issues running scripts, connecting to my TWS account via API

I have a live and a demo account

For example Workshop 4 tutorial

It runs and produces a chart. Presumably from a local data-set. It does not connect to TWS.

The script TradeTest successfully connects to TWS and runs.

How do I specifically have other scripts call or connect to TWS to use data from that source?

Thanks.

Actually, just found how to do this, trade after test.

Trade begins on my TWS demo account.

Are Tesst is always local?

Correct. In [Test] mode and [Train] mode, Zorro does not use your broker plugin.