Display Unsent Messages With Pending Label

If I'm sending an SMS remotely via the Chrome app and my phone is somehow not reachable, the messages will vanish and not show up at all. But once my phone does become available again, those messages will finally send, even if it has been hours and will finally show up.
It'd be nice if messages that were pending still showed up and did not vanish like this and were able to be cancelled before actually sending if in this unsent state.