Need help finding a typing program or website for kids that teachers can edit.

I’m trying to find a typing program or website where teachers can make their own practice examples for kids to type.

Typingclub Jungle Junior has a really neat system where it shows kids’ misspellings when they’re given the example sentences or words for each lesson, but I want to try making my own sentences or words for kids to practice on for the targets that I’m teaching for the day.

I would appreciate some recommendations.