Step 1: Open each account in its own window
Sign in to your first Facebook account. Open the second one in a separate window: another browser profile, a private window, or the Facebook app if there is one.
Step 2: Make the windows easy to tell apart
Keep the account's name or email where you can see it, such as the profile name in your browser. DuckyHelper sees your screen, so it reads the same thing you do.
Step 3: Ask in the window you mean
Click into the right window, press fn on a Mac (Ctrl+Shift+Space on Windows and Linux) and ask out loud. DuckyHelper answers about what is on your screen and can draw on it to show you.
Step 4: Hand that window the job (early access)
Drag the orb onto the window of the account you want and say what you want done. It works in that window with its own cursor while you keep using yours, and is built to ask first before it sends a message or pays for anything.