Glad it worked ; Here's my answers to your questions:
Question:
Is it possible to make the manager to stream both locally and externally?
Answer:
It already supports both. The way it works is like this. The Web socket always connects to your internal IP but then since you did port forwarding in your router to your external IP it will auto work. So just choose Internal IP in the manager and make sure you also put the Internal IP in the web on your local PC. Your friend will open the web and puts your external IP and both should work. I did not test this but it should work. Let me know if it works for you:
Question:
Other thing I realize, sometime when you start the software manager, it revert to default setting. Its not a big deal, but one time, I clicked on Start before realizing that it was reverted to default R3E, so the manager crashed because it was not finding anything on R3E
Answer:
I hope you downloaded the latest version in first post! I uploaded one yesterday. When you choose the game, it is auto saved for next time. If its not working, I'll check again but it works for me. if there is anything else you want saved and is not let me know and I add it.
Question:
I test with the Cobra and when I put REVERSE gear, the Widget on the web show Gear like: 23456765456 (taking all the screen long)
Answer:
Hehe, I put on the dashboard what the game gives me

I'll test it and will check.
Suggestion 1:
More option on the web browser, like the possibility to changer temperature from C to F, Liter to gal or KM/H to MPH
Answer:
You are from Canada

It can be done and I'll take note.
Suggestion 2:
Customizable widget
Answer:
This is what I am working on at the moment. I am creating all the possible widgets, then there will be a screen where the user choose what he wants to see and save the widget
Suggestion 3:
Like someone point out, good fuel widget: Last lap used fuel, average fuel by lap, how many time in minutes before running out of gas
Answer:
Sure, I'll take note. Ideally, if you guys know exactly what you want, just include an image here, even if the design is crap, but for me just to get an idea what you want.
Suggestion 5:
Damage widget ?
Answer:
It's already done, I just need to include it in next release.
Suggestion 6:
Track / ambiance temperature
Answer:
Yes, these can all be included as well. Will take note.
Suggestion 7:
Is it possible to see the hour in game ? To know when it will be dark
Answer:
Did not encounter this data yet but I will check the ISI API.
Cheers