To activate quicken screen share you can follow these steps for remote assistance:
Open Quicken and go to the desired file.
Search the "Help" menu and choose "Screen Share for Remote Assistance."
You will get a unique code, and share it with the person assisting you remotely.
Ask the person assisting you to go to "Help" and choose "Screen Share for Remote Assistance".
Once they enter the given code a safe screen-sharing connection for Quicken remote support will start.