How can I shuffle the play queue this way?

Hello,

I have a music selection and playback workflow that I developed with several other players. It's fairly simple, but I can't figure out exactly how to do it with LMS. Let me describe that workflow:

1. Find albums, one by one, and add them to the play queue. I can do this with LMS.
2. Shuffle the songs in the play queue so they are in a random-ish order and then leave them in that same order. I know how to turn on shuffle mode, but it doesn't act the way I expect. It seems to reshuffle any time tracks are added. Which I don't want it to do because...
3. Hours later, I add another album or two.
4. Shuffle only the remaining tracks, including the newly added files.

What keeps happening to me is, when I add a track or an album, LMS re-shuffles the play queue and then songs that have already played are shuffled back into the mix. Also, the order that was there before is gone. I sometimes like to insert a track or two into a random mix. With shuffle mode turned on, I don't seem to be able to do this.

What I'd really like to find is a way to just shuffle the tracks in the play queue *once* and not keep reshuffling them. Ideally I would be able to only shuffle the remaining tracks so I don't get repeats of tracks I already heard from this play queue.

Are there a combination of plugins that might let me do this? Or any other clever techniques I could use to emulate this?

Thanks,

Brian.