Regular expressions are by far the most powerful and customizable QA element. But their functionality in Studio is still very rudimentary; those of use who code our own RegEx and manage them in detail have to use special Excel macros and workarounds to manage them. Therefore, I suggest the following features be implemented:

1. Sorting: Sort regular expressions alphabetically, by creation date, or by groups (see point 3 below).

2. Concatenation: Currently, importing a RegEx file replaces all current expressions. It should be possible to combine RegEx files without resorting to Excel hacks.

3. Grouping: Being able to categorize expressions into custom, collapsible/expandable groups (e.g. Terms, Formatting, Absolute vs Situational etc.) in the expressions list would improve organization.

4. Unique file extension: Currently, exported RegEx files have the same file extension (.sdlqasettings) as full QA profiles exported under Verification -> QA Checker 3.0 -> QA Checker Profiles, of which the expression are only a subset. It would be less confusing to have a dedicated extension for exported RegEx files.