Plite mutations live under editor.update. Use a direct group method for one
write and the callback form for an atomic group of writes.
editor.update.text.insert("Hello");
editor.update((tx) => {
tx.nodes.set({ type: "heading" });
tx.text.insert("Title");
});editor.update.text.insert("Hello");
editor.update((tx) => {
tx.nodes.set({ type: "heading" });
tx.text.insert("Title");
});See the canonical Plite transform reference.