This is a small feature request, that may be a simpler solution to solve other larger ones that have been going on for like 10 years.

Currently (as far as I can still tell), there is no easy way to group/ungroup JPG + RAW pair files in Digikam.

The feature is there, it's just incredibly tedious to deal with when you're navigating in and out of 1000s of folders.  To the point where I can't even use Digikam to arrange my photos sadly, it's just too laborious to even bother.  And I've been unable to find any other decent software to for this basic task, aside from Lightroom, is which overkill and too slow to be usable.

Existing feature:

When navigating into a single album/folder, JPG + RAW can already be grouped using these manual steps:

1. Select all the files with: ctrl + a
2. Right-click on one of the files
3. Click "Group"
4. Click "Group Selected By Filename"

And basically the same 4 steps to ungroup.

Requested addition:

Under "Configure Keyboard Shortcuts...":

* I can't see anything related to this in the existing options for assigning keyboard shortcuts.
* Can you please add an action called something like "Toggle group all files by filename"

This single tap of a hotkey would then do the same as **ALL FOUR**  steps listed above.  Including #1.

This would be an amazing improvement in the usability of Digikam for anyone to shoots in both JPG + RAW (which I would have thought was a lot of people).

Similar issues:

There's another issue at: https://bugs.kde.org/show_bug.cgi?id=318357 (and a few others)... of course it would be great if they were implemented too.  They want a regex, so there's obviously more advanced needs there.  But my request here might solve it for a good number of us for now.  After 10 years of waiting + bike-shedding, it seems like there isn't much hope that feature happening though.

This maybe is easier for the devs to add first (seeing it's just a keyboard shortcut to features that already exist), and at least cover the most fundamental common use case of pairing JPG + RAW like other programs like Lightroom etc can.

Toggle:

Having this keyboard shortcut be a toggle (usable to un-group too) would be great too, because then you can quickly switch between grouped/ungrouped for those cases where you want to just work on individual files.

Sticky across folders:

In terms of whether this toggle setting apples:

* a) only to the current folder
* b) or it's a "sticky" thing that is remembered when you go into a different folder... 

My own preference would be (b).  i.e. I hit my hotkey once, and then every other folder I navigate into is the same as that latest state.  Because this is the mode I want to be in 99% of the time anyway.  If there's a reason to just go with (a) for now (i.e. (b) would delay adding it), that's ok too.  At least with a single hotkey it's quick to tap 100s of times in a sitting, but the currently needed 4 steps of mouse clicking are way too painful though, and it's the one-and-only reason Digikam is currently unusable to me sadly.