Ubuntu 20.04.3 how to change monitor ID numbers

I normally use a desktop with dual monitors, but it is down so I'm trying to use a Dell laptop with the docking station that has two DVI outputs. In Display settings it ID's the two external monitors as 2 and 3 and has a 1-Built-in that is off. How can I make the external monitors ID as 1 and 2 instead of 2 and 3? This seems to be find except when using multiple monitors with Virtual Box. It only gives the option of host monitor 1 and host monitor 2. I'm thinking it because they are seen as 2 and 3, because now I can't get this to work correctly. The laptop on the docking station has the lid closed.

diplay settings screen

Edit: My goal is to be able to use multiple monitors with the laptop using external monitors. This is what I was using with the desktop before it died. Since I normally used the laptop as a standalone, maybe I'm missing something. But with this configuration, when I go to full screen on a guest, then click ctrl+home, go to View, then virtual screen 1 can got to host monitor 1 or 2 (the VB identifiers), but if I try to send virtual screen 2 to either what shows up as host monitor 1 or 2, then I get an icon for it on my left bar, but it can't be seen and then I can't do anything and the other screen never shows visible. When this happens I can't do anything on the guest and can't use the host fully except get to a terminal to kill the process.

I'm just guessing that this is because the host Ubuntu is seeing it as display 3 and not 1.

I got it working now. I'm not sure if my resolution was the best, but it's the only one that I could come up with so far. It turns out that the host machine (Ubuntu 20.04.3) was not the issue as I originally thought. I found that changing the guest machine from Wayland to Xorg resolved the issue.