I just use a builtin Dragon mouse command to click in each of the upper / lower panes.
I use "mouse grid 6 4 2" to do the same thing in Visual Studio (left/right panes).
The grid numbers you chose don't matter because precise placement of the click doesn't matter.
Just pick something you can remember; anything with rhythm is fine.


Or, if you want to make a script command like "upper half" / "lower half", just put the mouse coordinates inside of a Dragon script. That way you can use your favorite names.

Win10/11/x64, AMD Ryzen 7 3700X/3950X, 64/128GB RAM, Dragon 15.3, SP 7 Standard, SpeechStart, Office 365, KB 2017, Dragon Capture, Samson Meteor USB Desk Mic, Amazon YUWAKAYI headset, Klim and JUKSTG earbuds with microphones, excellent Sareville Wireless Mono Headset, 3 BenQ 2560x1440 monitors, Microsoft Sculpt Keyboard and Logitech G502 awesome gaming mouse.