How to use ETFs in the Screens section?

Research
1

I’m trying different features of the Screens section. I want to specify a condition:
If no company falls under the prescribed conditions in a given period of time, then for now we enter the ETF or GOLD.
Is it possible?

Simple example:
price < 1
or Ticker(“TLT”)

How to implement it?

2

The universe used by the Screener can be EITHER stocks or ETFs. There is no way to run a stock screen and instruct it to buy an ETF.

3

Thank you very much for your answer!