I cannot tell my monitors apart w/ Total Spaces

See screen shot. There are 3 monitors and all three are named “LG Ultrafine”.

So when my TotalSpaces desktops are on the wrong monitor, I have to guess which is the right monitor. The process takes like 10 minutes when it should take 20 seconds. Some operating systems resolve this with an “identify” button, so that the user knows which monitor is which.