Thanks Dave & Urs!
"Contains" is not available but that pointed me to the following idea: choose January + exclude-container 2019 ..., and on 1st of January 2020 the right data will be filtered
.
The segment is about excluding traffic that looks like bots, competitors' scripts etc.... it contains various old browsers and user agents.
Example: a certain user agent might show normal user behaviour in 2018, but since a month in 2019 it has been odd (huge amount of traffic, no orders), so we want to exclude it from a certain point onwards.
