Keeping files together

[digikam at 911networks.com]

I'd like to exit LR and switch to DK with rawtherapee which creates
PP3 files.

How can I move and keep all my files together?

* photo-1234.cr2   <-- original from camera
* photo-1234-web-900px.jpg
* photo-1234-web-900px.pp3
* photo-1234-print-5-7in.jpg
* photo-1234-print-5-7in.pp3
* photo-1234-print-11-14in.jpg
* photo-1234-print-11-14in.pp3

I want to keep them all, in the same folder and the same album


-- 
sknahT

vyS