Find duplicates quickly?

Comics CLZ Comics Mobile
1

I collect comics, naturally i have many duplicates, i put grades on all of them
What i’d like to do is

  1. have a way to find all duplicates ( in the series )
  2. pick only duplicates with given grade/lower grade
  3. bulk-move duplicates to different collection

bonus - get some stats - tell me how many duplicates in have in a series etc…

2

The mobile-app does not have a “Find Duplicates” feature.
The web-app has a Find Duplicates feature. Here’s what it looks like:

image
image1920×1460 222 KB

It only allows to remove duplicates though. Haven’t heard the request to be able to “move” them before.

Could I ask what the reason/purpose would be to move duplicates with lower grades to another separate collection? Is it to have a “tidier” list? Or to sell lower grade versions or something? Let me know! Could be interesting for an expansion of this feature.