How do you sign in as proxy user

Summary

How do you sign in after setting up a proxy

Content

Hi

I am looking for some guidance as to how I can sign in as a proxy for someone else. I believe I have set up all the criteria needed to enable this to happen:

1. Employeee abstract role attached to all users

2. Proxy set up between target user and myself.

I seem to remember that the switch to menu item was under your name drop down, however I can't see it now. Although it is highly concievable that I dreamt that.

Can someone confirm/or point me in the direction of proxy set up/process.