All,
OK. Let me correct some errors in what I said and add some details.
New cards are not added to the playlists. However, I almost always have the "Always show" "new cards" filter on. What this means is that when I load a playlist and filter for enabled the new cards will still appear. It's an artifact of the VG application that I make use of regularly and I forgot how it works.
The Mac equivalent of the CNTL click method of selecting multiple items is the Command-Click. This capability dates back to the first Mac long before Microsoft began working on Windows. I use to, but not for long selections because I often fumble and click without holding down the Command key. This causes me to loose all my selections! I've made this mistake lots of times in lots of programs so I just don't do it when I've got a lot to select. Instead, I'll select a dozen or so items with Command-Clicks an then apply whatever action I want. Then repeat for another group. I just can't select more than a few dozen items in VG or any other application without messing up and going back to start.
To see how the playlist is encoded, simply open one with a text reader. Text Edit on the Mac does this as does Word Pad on Windows. In the Mac (I've never looked at VG files in Windows.) you'll see a list of all cards that where marked either as favorites (with a heart) or as enabled. A card that is both will have it's number shown twice. Here's an example:
e0019#e0023#FAVORITE:e0023#FAVORITE:e0024#
Card e0019 is enabled, but not a favorite. Card e0023 is both enabled and a favorite. Card e0024 is a favorite but not enabled.
Cards are listed in sort sequence starting with a0001 if you own it and going up to f0011 of you own that.
Since each playlist is a separate text file, it would be very difficult to update more than one playlist at a time. Difficult, but not impossible.
Regarding the VG UI:
I agree that the UI could be done a lot better. There are too many hidden features, something to be avoided according to all the UI design concepts I've been taught.
Regarding VG documentation:
A good UI design should need very little documentation, but most applications (not just VG) are less good and good documentation is a must. Good documentation should both explain what every the UI artifact does and also how do perform basic tasks. For example it would make sense to include step-by-step one what to make a playlist. The current VG documentation has not yet been updated for the new version of VG and the old documentation left a lot to be desired even when it was relevant. In addition to needed the services of a good UI designer, VG would also benefit from a good tech writer.
There are some playlist/clip managers for Windows that were written by members of this forum. I'm working on something similar for the Mac, but it's slow going in my spare time. I have some Apple Script that do some useful things with playlist but they are very limited. I just finished updating them to work with the current beta. They run on my Mac, but I've gotten bug reports from other users that I haven't had the time to resolve. If you're interested, send me you email address in a private mail message in this forum and I'll sent you what I have.