Navigation functions set through voice commands

A

AC Question

Hello everyone,

I hope someone can help me with this.
I am trying to automate my phone by using voice commands,state executions etc.
Tasker is one of the app I really like and hope to get some good understanding of it in order to make my phone more efficient.

Right now I'd like to know if there's a way to use the navigation system through the voice command and also set it to either use or not use motorways.

According to google, to use the navigation system I have to use the word "navigate to... location".
By doing this, a page, showing time and distance, comes up but then I have to click on it in order to proceed
However I tried "navigate to 'location' avoid motorway" and this doesn't work.
How can I achieve this?
Are there ways to go through apps functions using voice commands?
Is it there a better voice command alternative than google now?(i heard of autovoice and utter, what's your opinion?)

Thank you in advance