I looking for on web and forum, but I not found the answer.
I use also ZyXEL gateway in web gui there is function "Object reference", to know where the current object being used. Use web search to study in deep.
I need found a similar method to know from WebFig, WebFig-Terminal, WinBox or WinBox-Terminal, in what config parameter was used, for example, a specific certificate stored in Mikrotik device.
Because if I want substitute a old certificate, I like verify were it is used.
Or after test a new configuration, I like verify if I left I unused certificate.
Waiting for your kind reply, thank you.