[ASK] live update/preview of theme...

Hello all,

I'm unsure how to ask this, but I'm curious if there's a way that if you:

• Have multiple monitors set up
• Have WordPress theme
• Have content being added/saved in that theme

That you'd be able to view it live in one monitor as you update in another? Kind of like getting a live update/preview in certain IDE's when you update code? I'm more so asking for creating videos and showing what it would look like as you update, instead of recording the content update first and then recording the end results.

Any input on this would be greatly helpful and appreciated! The winning answer will be awarded 5 internets!