How can I do this and not destroy alm syncing ability? Is this even possible?
You can’t as that is structural data. So, if you must have a property on the list (best practice is to have a SYS properties module), you will need to define the property in the Dev model. Then create a revision and sync to Prod (the deployed model).
@rob_marshall Oh my....I had a senior moment when I wrote this question. Thanks for responding so quickly.
Blame it on 2020!!! We are all having them.