When clicking on this button, segments will be verified just like in Trados Studio. The type of verification and the severity can be configured by using a QA Checker Profile created in Trados Studio and applying it to a project through the Project Type's settings as described in this article.
The QA Checker Profile can be exported from Trados Studio as *.sdlqasettings file:
A Task associated with a project that uses a specific QA Checker Profile will apply its settings to the verification. If no QA Checker Profile is associated with the project, the default settings will be applied when running the verification.