When composing a new email how do I get the contacts address in place?

There used to be a highlighted feature "insert address" no longer present under the line for the address.

When composing a new email how do I get the contacts address in place?
Do you mean you need to pull the addresses from your address book? There should be the word "To" right next to where you put the address, that you can click on. That will bring up your address book contacts.