When you change your asset list, close and restart Zorro.
The Symbol column strictly affects how Zorro interacts with your broker - it affects nothing else, including filenames and asset names. That's why you can put a period in the Symbol column and not in the Name column.
For example, if Name is "FOO" and symbol is "FOO.1", it will use "FOO.t6" or "FOO_2021.t6" in [Test] and [Train] mode. But in [Trade] mode, Zorro will speak to your broker in terms of the symbol "FOO.1".
Further reading:
https://manual.zorro-project.com/account.htmhttps://zorro-project.com/manual/en/symbol.htmhttps://zorro-project.com/manual/en/asset.htmhttps://zorro-project.com/manual/en/script.htm (see the History variable)
