Forcing https on subdomain + live chat

Hello,

I have a few question regarding Leantime please.
It is really a beautiful piece of software.

1)How to force https when installed on a subdomain please as setting it up as https in the config file is not enough.

2)It would have been nice to have a live Kanboard as I have noticed that all the members must refresh the page in order to see what others have done, this is not ideal in larger teams.

3)Having a live chat would have been superb because many times, you have someone writing a tasks but must consult different people at the same time to get it setup properly with all the right information.

Thanks!