While Test Completes visual keyword tests require no programming
skills, savvy test engineers can use automated test scripts for test
case automation that requires a certain amount of programming logic.
Regression testing is a type of software testing that seeks to uncover
new software bugs, or regressions, in existing functional and
non-functional areas of a system after changes such as enhancements,
patches or configuration changes, have been made to them. Regression coverage isn't a question of the number of cases as much as covering the conditions that 1) ensure functionality works, 2) bugs found have been resolved and 3) a functional area can handle some amount of negative or destructive behavior. Regression testing that addresses all three aspects should guide your testing efforts more than focusing on the number of cases.