This is a relative question so I don't know what "easy" means to you, apologies.
What I can tell you is that if you want to manipulate any of that stuff, you'll need to do it in the template.
Yeah, like Jim mentioned, setting up customization would be on the template level.
If you, or anyone you know has HTML/CSS knowledge you can add local (module-level) variables for controlling all these kinds of customizations straight from the email editor.
You can make the hard coded height a variable, which then can be easily changed in the editor without any coding, please share your hero HTML and I can write the solution for you.