Logos currently caches the last ten concordances.
Please consider providing a user preference setting allowing us to choose between caching 10 or 25 concordances.
I realize that a bible concordance may use 350-400Mb of disk space, but if we have plenty of disk space, we should be able to choose to keep more cached concordances, to save time from having to regenerate a concordance for a bible which is no longer in the cache.