I know you can select email by pressing the thumbnail and using ctrl-click or shift-click from there to select, but I'd like to have the option to do this without having to press the thumbnail every time.

Often I end up accidentally clicking away or forgetting and clicking the email itself when selecting and its quite annoying. Or it ending up taking longer to select emails because I have to carefully click each one.

Worst case please add it as an toggleable setting.