We've been asked by a customer if MatchPoint allows the manual execution of expressions under a specific user context. This can be a big help while developing, debugging or testing MatchPoint solutions. As MatchPoint's Expression Console (ctrl + e) is only
accessible if it is enabled in the MatchPointConfiguration as well as if the current user is site collection administrator, there is no out of the box way to do this.
With a couple of lines of C# and JS code placed in a MatchPoint User Control, this functionality can easily be implemented.