I have wondered this exact same thing! I assumed tree editors did exist, and I was excited that all I needed to do was go find them. But Google did not come thr

I have wondered this exact same thing! I assumed tree editors did exist, and I was excited that all I needed to do was go find them. But Google did not come through for me. Even a basic tree editor would be very powerful. Especially if you could run code from a repl that would change the tree (I know, that's no longer basic ... but it would let the graphical portion be basic, which might help it be bootstrapped into existence).