[FR] Short command to help chat not waste tokens when coding

I noticed in ChatGPT4 when using https://chat.openai.com/?model=gpt-4 The model does a great job at not being redundant with code that doesn’t change. However when it comes to playground, even when I ask not to retype code that doesn’t change I’ll still get the entire script from time to time when it’s a function change or something small. Maybe this setting already exists and I’m overlooking it. But if not, a short command like “in style of no repeats” or something would be helpful.