Locking a Filtering Scheme

Sometimes, I need "static" filters in visualisations. This can be done e.g. by using an expression to limit the data. However, to filter lots of different columns for a number of values, the expression becomes quite confusing (lots of and/ors with parantheses). A better option often is to set up a special filtering scheme for the job and limit the data using that filtering scheme.

However, when the filters in that special filtering scheme are changed, the analysis will be wrong and not display what is intended. To avoid this, it would be useful to have an option to "lock" a filtering scheme so that filters cannot be changed and unintended changes are avoided. The option could e.g. be integrated into the Manage Filtering Schemes Dialogue. It's no problem that any user could change the Lock status, the option should avoid unintended changes only.