How to hide a subtab of the Region of subseparators dynamically depending on the values ​​of a field

Hello, I have a subtab called TramitesAdicionales. I need to give it a functionality, which is that in the initial subtab I have a field called Estado_C. This field is a fixed drop-down list. If this field changes, the TramitesAdicionales subtab must be activated.

I have tried this using a trigger but I cannot provide this functionality. Is there a way to create this type of functionality?

I appreciate the help.