United States-International Keyboard

Hi,

I just moved from Windows 10 to 11.  In W10 I used the US-International keyboard to enter characters like "a umlaut".  It was easy to do by typing a " character and then the character itself.  To type the " character you just had to wait a bit.  I used the keyboard to type in Finnish language, which uses "a umlaut", and "o umlaut" characters (lower and upper case).

W11 does not seem to have a US-International language or keyboard.  There is a MS note about adding the keyboard to W11, but it just talks about various features you can use to change your chosen language, nothing is mentioned about keyboards.

In another note I learned that I can enter an "a umlaut" by entering ALT-132 (the numeric keyboard numbers), but that is pretty cumbersome.  So I tried the MS PowerToys Keyboard Manager app to set up a Remap Shortcut.  But it seems that I can not enter the ALT-132 code to be sent, the app can only do a plain text, with no ALT key pressed, or to do only one character while ALT key is pressed.

So without going to some third party app, is there a solution in W11 for my problem?  My alternative is to find some third party app that allows the mapping I need, but I would prefer to stay within the MS world.