Hotkey EA & Explanation

Hello, as the title implies I want a simple EA that will open/close trades with the press of a hotkey in strategy tester.

For example) I want to press Q and have a buy open opened while testing in the startegy tester. Then I want to close that trade by pressing E on my keyboard.

I need hotkeys that should work after I click a button in Control Panel (on chart) that either turns hotkeys ON/OFF. I should be able to specify the hotkeys I want assigned in inputs.

here are the following hotkeys I need:

hotkey for:

-Open a buy

-Open a Sell

-Close all buys

-close all sells

-close most recently opened buy

-close most recently opened sell

-Move SL of most recently opened buy to BE

-Move SL of most recently opened sell to BE

Also, will need you to explain how this is coded and provided assistance to ensure that I fully understand the coding solution/idea.