AutoHotKey Script to emulate typing. Use CTRL+SHIFT+V to paste clipboard character-by-character as if typing.

EmulateTyping.ahk

^+v:: ; paste text and emulate typing (CTRL+SHIFT+V)
AutoTrim,On
string = %clipboard%
Gosub,ONLYTYPINGCHARS
StringSplit, charArray, string
Loop %charArray0%
{
	this_char := charArray%a_index%
	Send %this_char%
	Random, typeSlow, 1, 3
	typeMin = 50
	typeMax = 150
	if (typeSlow >= 3){
		typeMin = 150
		typeMax = 350
	}
	Random, t, typeMin, typeMax
	Sleep, %t%
}
Return

ONLYTYPINGCHARS:
AutoTrim,Off
StringCaseSense,On
StringReplace,string,string,–,-,All	;emdash
StringReplace,string,string,´,',All
StringReplace,string,string,’,',All
StringReplace,string,string,©,(C),All
StringReplace,string,string,“,",All	;left quote
StringReplace,string,string,”,",All	;right quote
StringReplace,string,string,®,(R),All
StringReplace,string,string,¼,1/4,All
StringReplace,string,string,½,1/2,All
StringReplace,string,string,¾,3/4,All
StringReplace,string,string,™,TM,All
StringReplace,string,string,«,<<,All
StringReplace,string,string,»,>>,All
StringReplace,string,string,„,',All
StringReplace,string,string,•,-,All	;bullet
StringReplace,string,string,…,...,All
StringReplace,string,string,`r`n,`n,All ;replace newlines
StringReplace,string,string,chr(0),A_Space,All ;NULL
StringReplace,string,string,chr(9),A_Space,All ;Horizontal Tab
StringReplace,string,string,chr(10),A_Space,All ;Line Feed
StringReplace,string,string,chr(11),A_Space,All ;Vertical Tab
StringReplace,string,string,chr(14),A_Space,All ;Column Break
StringReplace,string,string,chr(160),A_Space,All ;Non-breaking space
Return

Is there a way to have this only activate in certain Windows or applications, but not override the hotkey in other Windows?

Consult the AutoHotKey documentation. To do this, you'd need to use WinGetActiveTitle and then use IfInString (or If Title contains) to check against a list of allowed window names.

For example, if you wanted this to work with app that have a window title that contain the text "Visual Studio Code", you could use:

WinGetActiveTitle, Title
IfInString, Title, Visual Studio Code
{
 ; all of the logic
}