I was browsing through the borders that are part of the v5 Professional pack, and it seems that there are 3 borders not included with v5 that are included both with v3 and with v4. They seem to be No. 7, No. 57 and No. 99. They are not named in v3 or v4, but No. 7 seems to be an Aztec style border intended to sit on either side of the vertical edge of a page/document, No. 57 seems to be a top and bottom horizontal border, and No. 99 also seems to be a top and bottom horizontal border and have a swirl pattern surrounded by zig-zag lines that repeat within the border.

Can these borders be added back into the v5 border pack to augment the pack as they are useful, and I cannot understand why they have been omitted from the v5 border pack.

I should also add that the borders from v3 and v4 that I referred to above do function/display correctly with v5, so they are missing from the v5 Professional Borders for no apparent reason!

Well, I can only think that V5 includes an older version of the Borders package. I noticed that V4 doesn't show any names for the related borders but in fact the list is exactly the same for me in 4.1.5.6
So I'm not exactly sure how you count those borders as this is rather difficult with the 3 item lister display in V4 but I can only think that they miss in the Border Engine for V5.

The BordersPro package consists of at least two additional files named "Volume 1-Basic" and "Volume 2-Geo" in the SoftLogik/Engines/Borders path. The only thing I can think of is that the versions you refer to had been updated at some point and the one included in the V5 package is older.

Yes, in v5 those 2 Border packs are incomplete compared to the ones from v3 and v4 which consist of Book of Kells, Domnach Airgid, Mac Duman, Nigg, Samples, St. Andrews, Volume_1-Basic, Volume_2-Geo Border packs. As you will notice that there are not, what I can best describe as, 3 x AZTEC style borders, as specified above.

Well, ok, I guess the missing borders were simply left out or forgotten when the set was merged into basically 2 files then.