1: Mouse Grid like Windows speech recognition system when for some reason we can't reach with numbers.
I think it is a very good idea, I will research how it can be implemented
2: A command to call the Handsfree for chrome, like cortana, siri, google, alexa.
Do you mean a voice command to open Google Chrome and then the extension tab?
3. A virtual keypad for passwords, using the "show numbers" feature.
Could bring more details about this idea?
4. a kind of webcam control or synchronization with Eviacam software, for easy access to voice-disabled people too.
I will research about it.
Thanks for posting possible new features.