"How to map/keymap/split a keyboard to play different instruments in Logic Pro iOS"

Greetings Experts!

I'm new (color me green) to Logic Pro, iOS, MIDI, MPE, DAW synths... Ok. Ok. Pretty much everything in digital music. But I'm a pro when it comes to using Netflix! Yay.

For the last week, I've been trying to figure out if I can map (keymap/split) my keyboard to play different instruments. For example, I want to play a flute using the first two octaves on my keyboard. And play a cello on the last two octaves on my keyboard.

Here's a screenshot and a video from a YouTube of what I mean.

Multiple instruments mapped onto a single keyboard.

First of all, is it possible? Second, how? If not, can I get some kind of plugin in Logic Pro to be able to keymap?

Finally, if Logic Pro can't do it, can someone suggest an app for iOS that does? Free, powerful, lots of sounds, etc would be great! I'm told it can't be done in Garageband. Sadly.

Thank you for your time and efforts in my musical journey. (Which so far is just walking in a small circle in the middle of the dining room. Until dinner.)

Cheers!

alexander the hungry