For push-to-talk in windows:
First, click configure, and then settings.
Next, you should set the transmit option to Push to Talk on the first page that shows up, the Audio Input page.
Then, you want to go down to the shortcuts page.
At the bottom of the page, click the Add button.
Then, finally, change the function of the new shortcut to push to talk by clicking on the word “Unassigned” and selecting “Push-to-Talk” and then clicking on the blank box under shortcut and pressing the key that you want to function as your Push-to-Talk key.