In case you need to narrow the dataset according to some criteria, a global filtering option is available in the Project Settings.
The most common cases where the global filter may be applied:
When a database contains both completed and incomlpete interviews and only completed are needed;
When relevant data filtering need to be done to existing decks/dashboards.
How to filter databases
Go to the Project Settings → Filter;
Select variables which are filter’s parameters and add them to the Expression builder;
Here you can also use logical operators when filtering by multiple categories;
Click SAVE.
Be very careful managing filtered databases since there is no visual indicators of global filtering.
Here is the exapmpe of how to combine categories with logical operators: