Fortunately for you Bob you can remap practically every keyboard shortcut in Windows Terminal, as long as you're ok editing config files?
You'd just need the following:
(elReg's comment code mangles the formatting, sorry)
{
"command" : "copy",
"keys" :
[
"ctrl+insert"
]
},
{
"command" : "paste",
"keys" : [
"shift+insert"
]
}
