Limit changes in the mirrored board

Hey,
I want to create an overview board that reflects the work on the projects boards but don’t allow any changes in them.
I tried to connected the boards and mirror the needed columns and didn’t choose the two way connection option. Still any change I made in the overview board changed the original items.
Is there any option to prevent that?
Thank you!

We had a similar challenge and I found 2 possible solutions
Say you have 2 boards - Board 1 and Board 2. Board 1 has your data that you have mirrored to Board 2. You want to stop users in Board 2 from randomly updating the mirrored data from Board 1

Possible solutions

  1. Change the permissions on the mirrored board (Board 1) so that only people assigned to the item can modify it. This does include the owners for Board 1. Now Board 2 users cant change the data unless they happen to also be an owner on Board 1 or the item on Board 1 is assigned to them. And in that case you are probably ok with them updating it
  2. Make the mirrored columns non editable by selecting Settings → Restrict column editing

We have tried both and they work for us they way we need them to,