Laptop display lower resolution than monitors limit mouse motion

I have 2 new monitors with 2560 x 1440 resolution but my laptop has a maximum of 1920 x 1080 resolution. My display settings show the laptop screen as smaller than my displays. This causes my mouse to hit the edge of the larger monitors going to the small laptop screen when I am working. Other than reducing the resolution on my 2 monitors (I do cad work and need the high resolution) how can I increase the apparent size of my laptop screen so the settings think they are all the same size so my mouse cursor flows freely across all screens?

Question by Mark LaPlante on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.