@Ćcaro BĀ - By ālookedā I assume you mean locked? If so, you cannot keep duplicated objects locked. However, if you have a paid or Education Plan subscription and are wanting to add add a frame of locked objects to the same (or other boards), you could use the Custom Templates feature.
Ā @Ćcaro BĀ I feel your pain, for me itās not expected behaviour or efficient to have to re-lock things and comes up so often. I created a wishlist itemĀ that you can upvote. Fingers crossed!
That said, Ā @Robert Johnsonās suggestion was a really helpful workaround that Iām about to use -Ā thanks Robert!