Just have a "link settings to favourite" button in the object settings dialogue?
It would basically mimic the behaviour of "instances" in other software, unticking it would make it unique again.
The UI could have a selection popup where you could relink to a new Favourite setting (~Type).
Right now the workaround could be to save a window as a new element into the embedded library to standardize certain parameters, but user-made properties are not stored there. So either you are stuck creating custom GDL parameters and hide those from regular users, but then all the scheduling work is back to you, or you can try fiddling with the find & select window, but that is rather error prone in my opinion.
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