snapraid/mergerFS pool file exclusion Rules

Hi

In snapraid.. I want to exclude specific files in specific folders..

setup:

8 3Tb files created with EXT4
1 21Tb MerferFS pool

In snapraid I added all 8 disks but NOT the mergerFS pool.

In rules I want to set up a rule to exclude jpg files from the folder /media/

Now since I don't know where MergerFS might put the media folder in the future I can't point to a volume... apart from the MergerFS pool.

I've tried adding

No volume selected
*.jpg

it works and excluded ALL jpgs.. but I dont' want that
I then tried adding the MergerFS pool and *.jpg
Works as above.

I then added
No volume selected
/media/*.jpg

Doesn't work
Then
MergerFS pool
/media/*.jpg

Doesn't work either..

So how do I deal with excluding the jpgs?

/media/*/*.jpg
/media/*/*/*.jpg
/media/*/*/*/*.jpg
/media/*/*/*/*/*.jpg

works..