Thanks a lot for the speedy reply.
1) I would think it's better to disable the LED light completely. Why do people want to turn off the LED status light? I think most likely they don't want to tell "Here is my security camera". For home security indoor use, the only purpose is to record the intruder without telling where the camera is.
2) At the moment I have only 1 camera. The app should have a bit intelligence to display 1/1 and even better not to display 1/1. Anyway, I feel it is an old ASCII terminal style to display m/n. I hope there is a better way to do it.
I have a few further comments on the app:
A) When Wi-Fi is unavailable, the app should show something like "connection to the camera has failed", instead of telling user to refresh the screen.
B) During Playback, when I clicked Download, it shows a message "Unable to download clips. Your phone is not connected to the same network as your Tapo device." I am using my phone to setup a hotspot and the Tapo camera is connected to the hotspot Wi-Fi. I understand this kind of usage may not be desirable, but the app should work and it has likely a bug in recognizing networks. Download should be allowed as long as a connection is available and regardless of the same network or not. The download works on my tablet (both the camera and the tablet are connected to the same hotspot provided by my phone).
C) I wish the app has a function to download whole video files (not just individual clips) recorded on the microSD card. This is useful, since taking out the microSD card and then copy its files to my PC is not practical once the camera is installed. Of course the app can remind user the download may take very long time if the camera and the app are not on the same Wi-Fi network.
D) I tried this: Power off the camera, and then after a while power it on but without Wi-Fi connection. It seems that the camera continues to record video from the previous recorded time point. As a result, the timestamp is not reliable.
E) I would suggest have a text log file that records important events: Camera boots, connections and disconnections to the Wi-Fi, motion detections, and disable / re-enable of recording. This can be helpful for determining the right time stamp in case of D) happens, as mentioned above, as well as point 4) in my previous post.