I have created a Custom Property of Yes/No for interfaces, by default when an interface is selected to be monitored, it is assigning No ( False) is there away to set the default as Yes ( True ) ...??
It looks like this was requested as a feature for a while now, but I don't see it being implemented yet. Hopefully they do, because I could use it too.
NPM: Custom Property Default Values
That thread is outdated as it predates the voting system.
The current version of this request can be found in the following two threads (representing two slightly different situations). Upvoting these will help improve the chances they are implemented.