Yes, you can absolutely retain your current redirects. There are a few ways to set those up – the easiest through utilizing our built-in redirection tool right from within Atomic and ditch any plugins you’re using for this now.
We do support plugins if you’d prefer, like the Simple 301 Redirects plugin, or if you’d feel more comfortable letting us handle the task, you can provide us instructions on what URLs should map to where and we can set up NGINX redirects for you on your behalf.