Can I store archival folders in a separate non-store-folder – and still access them from WLM?

I have a massive WLM store folder - 34+GB - where all my email life, going back to 1995 or earlier - resides.  It's survived several migrations, but in W7Pro, WLM seems determined to lose my archives.  At the moment, I have backups on older terabyte drives, in real time (no compression), so I could retrieve them and reconstruct my WLM local folders.  However, in a different thread about disappearing folders, it was noted that my store folder was unwieldy (not to mention enormous) and the occasional database resets would take abnormally long.

As the guilty parties are - after my initial one of 5-16-05 - in 6-month bunches per folder, and never accessed other than in a search for something remembered and needed currently, having all those storage folders NOT be involved in database reconstruction might make things simpler, as well as not cause my folder where I copy (in real time, via mail rules) all 4 of the accounts I monitor to disappear AS I'M USING IT (what a shock, each time, until, now, at over 10 instances, I have gotten used to it). 

 Is there a way to set up a warehouse, so to speak - a section, or some name, or some later-searchable folder which isn't in the 'current' version of WLM I'm using every day - that I can go to if I need to search the archives, thus not making my overall database so big (as it appears may be the issue with the disappearing concatenation folders)?

Thanks.