For columns with invalid information we want a red background. When applying this to date_from and date_until we have a single condition, but want to apply it to both columns.
In the current situation we have to create a conditional layout for each column and each set of AND-conditions. It is very easy to make a mistake here, especially when there are a lot of combinations.
An improvement would be to have the option to add multiple columns to a Conditional layout.
