There’s no status, no command line, no pop-up that I have found that could be considered a “prompt”. It’s something that I feel is missing in the software currently. Adding these prompts to the status bar to communicate to the user what the software is needing from the user. Having something like this at the bottom of the screen that’s transparent similar to the coordinates would be very informational to the user, especially new ones trying to learn the software. It could even be hidden except for prompts such as:
Pick points around the area you want analyzed. Double click the last point to end the selection.