Starting remote control in LogMeIn Pro
Choose the most convenient way to gain control of a host computer.
From the Computers page

From the host's Main Menu
Once connected to the host
Main Menu, select
Remote Control.

Remember: When the Allow full Remote Control permission is disabled, you can only connect to computers in Remote View. In this view, you cannot take over a remote computer, only view the screen of the host. In addition, when this permission is disabled, you cannot launch File Manager.
From the client desktop app
Connect to host computers from your PC or Mac directly.
For details, see Connect to LogMeIn hosts from the client desktop app.

Once remote control has started...
Once you have launched remote control and successfully authenticated to the host computer, you see the host computer's desktop and the remote control toolbar. See this video for a quick overview:

Sample remote control toolbar