Hello. I am not sure that I correctly understand what do you mean.
You can add Replicator+ printer in 3dprinteros client with new IP address. What is a problem to do it? You can queue jobs for offline printer too.
If you need to use some printer where you can to queue, then you can add industrial printer (part of virtual queue feature; page https://cloud.3dprinteros.com/printing/ -> +MORE -> ADD INDUSTRIAL PRINTER/CNC, Select some printer type - you can use Replicator+ type too, set printers name)