No need to repeat the numerous missings in Directory Opus, all the more so since it's not well accepted in this forum to mention them, and when you do, you're invariably told that you are asking for sheer rubbish: Whenever Directory Opus doesn't have, it MUST be rubbish, it's that simple! Cf. the current DO thread for this, and I happily accept this. But let me speak about FileBoss:
They have a "home licence", for up to three computers, and a "commercial licence" where you pay for any computer - BUT the "home licence" is also valid for individuals, i.e. and if I understand well, if you have some corporation or work in some, the corp must pay per seat, but you're free to install your "home" licence on up to 3 comps, be them in your personal use (and not of your paid secretary) or that of your family members. (Compare this with DO where even your wife pays extra (all the more so since DO checks every single comp out every felt minute).)
Good news here, FileBoss will be 40 p.c. off very soon, on bits - remember bits takes 50 p.c., so don't blame FB for wanting 30 p.c. of the asking price, and not just 25 p.c. - unfortunately, 40 p.c. off seems to be a lot less "interesting" than 50 p.c. off for many prospects, but we're speaking of some 5 dollars here, so don't let pass a very interesting offer (and bear in mind, the DO-1-comp-30$ version is literally stripped to the bone).
On YouTube, see two videos (15, and 10 minutes, but they explain a lot), and I mention some points here that you can observe there.
Yes, FileBoss has more than 2 panes in one window / instance (you can see this in the 15-min. vid), and I won't repeat here why this is extremely handy for most pc users out there, any sorting out your inbox into multiple folders becomes so much easier then. This is a unique feature of file boss, within the big shots, neither DO, nor X2, nor XY, nor SC offering such a feature (and no, multiple tabs (which FB has, of course, as they all have) are NOT an alternative for multiple panes in any way). As for shortkey to access these multiple panes when you're a a keyboard guy, not a mouse guy (anymore, e.g. for carpal tunnel syndrome caused by far too many web sites in your previous life where amply mouse abuse had been inavoidable), let's see about this later.
The second video (about 10 min.) shows another specialty of FB, i.e. copying / moving files with common attributes (e.g. "tags" as name parts, and many more), also from many sources, to a common destination, BUT with replicating their respective source folders there. This seems incredibly useful to me, IF you need such a feature, i.e. then this function will save you an incredible amount of manual work. At this time, I don't grasp yet how I could make this unique feature useful for me (and then explain to others how it could become useful to them), but I have to admit I know this feature just from looking on, not from trialling, and I have got a certain feeling that for both for project management as for "software engineering" / versioning of multiple files in multiple folders and sub-folders, such a feature could become pure gold if used in a smart way (home-made CMS, anyone?!).
There are other such, sophisticated features in FB that are not immediately "accessible" for the casual prospect, so I'll write again after having thoroughly trialled. And FB isn't any newcomer, see the "mini review" for the previous version in the respective DC folder (which I discovered rather late I must say, so this hint might seem unneeded for some but may be helpful for others). The offer on bits is their brand-new version 3, just out a week or so.