Focusing search to just one drive but scanning all

[abrasion]

Hello,

What I'm after I'm 99% sure already exists but I don't know precisely what settings to choose to enable this.
I have 3 drives, M,N and P - 20TB of data.
I have duplicates across all drives, N: is full of duplicates of data on P: AND duplicates even on N: etc
Long story short.
I would like to scan ALL my disks for duplicates but ONLY display duplicates which are primarily on P:

Example
N:\Bob.DOC
N:\Duplicate\Bob.DOC

vs
N:\Dave.DOC
N:\Duplicate\Dave.DOC
P:\Dave.DOC
P:\Duplicate\Dave.DOC

I only particularly care about Dave.DOC - Bob.DOC I can deal with later.
Does this make sense? I assume it's a simple filtration option.

I want P: as a primary duplicate 'root' if it's a dupe but there's NOT a copy on P:, I don't care.
Anyone?

[abrasion]

I guess the best solution here at this point has been utilising the filtering options (which I can't find in the beta for 4.0)
It seems to be doing what I need, although I have come up with a couple of ideas as I use it.

[therube]

4.0 has the concept of "Protected" (is that the old 'Scan Against Self' ?) & "Master Folders", but I'm just not sure if I've experimented with them yet to have a feel for what they do?

[DigitalVolcano]

In version 4.0, this can be achieved by setting P: as 'Master'.

Master = Only find files which duplicate the ones on this drive/folder
Protected = files in this drive/folder cannot be marked/deleted.

[abrasion]

James,

I've really been playing with version 3 a lot more than I had previously and I gotta tell you, the filtering stuff is quite powerful, I had no damn idea.
Am I missing something or is the 'selection assistant' missing in V4? Because now that I know how to use it, for the love of god, don't ditch the thing, it's very very powerful, considering the..frankly 'obscure' mess I have.

I know this may be difficult to believe but my file system is probably a best test case scenario you'll find. I have thousands of duplicates, example a backup say of 50gb of my mobile phone, in N:\mess\blah\phone\apr and another copy in N:\mess\blah\blah blah from Mar and then another copy but it's ONLY the DCIM photos, then I'll have a random copy of the phone/sdcard/SCREENSHOT folder in a random directory, then I'll have the files I uploaded to the internet manually from the phone, but I copied to the desktop first, THEN months later cleaned my desktop and put it in N:\mess\junk\desktop from august\lol!
(This is quite seriously not a joke - it's that messy)

Plus attempts at copying files over one and other or .. well anyhow.

It's a MESS a REAL mess and the selection assistant is saving my butt here.

I *WOULD* really like the selection assistant but instead of being a SELECTION it's a filter only (can the program do that)
Right now I want to find all the .PNG and .JPG files on my drive which are a 99% visual match (I can do that easily) but ALSO only with (1) or (2) in the filename
I can do that but it will SELECT them :/ that's a worry, I just want to display all files with (1) in them, let me choose which one to tag.
(Does that make sense)

Sorry to partially branch from my original topic.
- S

[DigitalVolcano]

The selection assistant is there - you need to click on the 'user/assistant' symbol next to the duplicate list to show it. It should be shown by default but there is a bug in the first beta which hides it...