Hello,
3) Theme Options > Footer > Footer styling > Footer Links > hover color
4) Here is custom CSS code:
.nav-sublist-dropdown {
width: 11em;
}
5)
.menu-element .menu .menu-item-has-children>a:after {
right: 50%;
}
6) There is no such possibility, by default. We can try to achieve result similar to the desired one using custom CSS code. Do you need to do this for menu in a particular place? Please provide URL.
Regards