Stenograph symbol based keyboard input?

In terms of user experience is there a stenograph input that is based on symbols and not phonetic translation?

This would be similar to Chinese input mechanisms with a symbol based input and a not a phonetic one?

I am attempting to create my own using autohotkey but it doesn't support multiple key input 3+ so it can be difficult. Maybe there is a keyboard layout based on multiple key pressing registering a key instead of a sound?