honestly, this is something which will eventually happen. This project is fantastic but its important to remember a couple of things.
One, it's primarily written, maintained, and developed by ONE guy. We need to get more developers involved. Lately, it seems we've gotten a few developers working on it, even if it is just in the form of install scripts. (though this is a hugely important area when it comes to adoption....one of the biggest gripes i get from converts is how hard it is to get a working install vs something like torrentflux. )
Two, while the main arm of the rutorrent team can't provide this plugin due to previous arrangements with another company, the core project has a very simple (from a coding standpoint) plugin structure, and is open source. This means all that is really needed is some 3rd party developer or helpful user to start the work and get it to a semi-usable state. If someone else writes this and provides it to the community, we're not breaking any promises. I personally expect this to happen at some point, but we need to get more experienced coders involved in the project.
Three, If you yourslef are a seedbox provider, you're also free to pay someone else to develop your own plugins. I know of at least 3-4 who have gone this route..
Four, as a few people have said (myself included) there are other options out there for this which aren't as nice but still work well enough...theres a TON of explorer like programs which will work perfectly fine....the biggest annoyance is for multi-user systems because they either require you to: Log in a second program, Install multiple "copies" and link it to a user somehow. While this isn't ideal, it's stil an option and i know plenty of people who use this method.