message: Modified error copy
diff: @@ -55,7 +55,7 @@ function initPlaybackTree() {
  try {
  if (PlaybackState.runningQueue.length === 1 &&
  ControlFlowCommandChecks.isControlFlow(PlaybackState.runningQueue[0].command)) {
  - throw new Error("Unable to execute control flow command by itself. Instead, you can play the test from here by right-clicking and selecting 'Play from here'.");
  + throw new Error("Unable to execute control flow command by itself. You can execute this command by running the entire test or right-clicking on the command and selecting 'Play from here'.");
  } else {
  playbackTree = createPlaybackTree(PlaybackState.runningQueue);
  PlaybackState.setCurrentExecutingCommandNode(playbackTree.currentCommandNode);
  