For example, in SF the tab 'Table task parameters' should be disabled or hidden, as long as no 'Table task' record exists.
I know, that in end user applications this can be achieved with a context procedure, but I believe this is generic logic.
Disable detail tabs when master record does not exist
Software Factory
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This is implemented for tasks in the SF 2020.1. This topic will be closed.
Another similar topic for disabling reports and detail tab pages is available here: https://community.thinkwisesoftware.com/ideas/366.