I want to make sure I am not missing something. Some IDEs allow selecting an expression while at a breakpoint then evaluating it. My understanding is that SD does not have this feature. Right? What I can do, of course, is copy the expression and add it to the expression pane, which isn’t all that different
Or you can select the range of code, and hover the mouse over it to evaluate the selected code in a tool tip. There are limitations to this (no destructive AppleEvents, etc) but its the quick way of evaluating an expression.
You can add a expression to an breakpoint (condition), but that’s probably not a solution here.