Pine Script (Horizontal, Vertical lines and Rectangle/Boxes

Hi, I really want to reduce my time marking up my charts and would like some scripts edited to show a horizontal price line for the highest EMA/SMA in multi time frames. Here is a link to what is the closes but I want the highest and lowest prices. 4H+. https://www.tradingview.com/script/Eu0bDpxQ-EMA-8-21-SMA-50-200-Show-horizontal-lines. I do have other projects but just to keep it simple the rest is similar. For Bollinger band lines etc. I have the codes for everything I just need them edited. You must have some trading and Tradingview experience. I have edited some myself but have struggled with the specific candles for the horizontal lines. I have tried this on other platforms and they have struggled due to lack of experience. I need the experience as the may be other projects that follow. I would also like some training eventually so that could also be discussed