Setup a guard ring around an object?

[PDA1]

Is there a simple way with OpenCPN to set a protective or warning ring around an object so that if I crossed into that protected area I'd be notified in some way?

[wdkester]

Probably not what you're looking for, but a negative anchor alarm works this way. The boat has to be within a mile of the hazard though.

[PDA1]

'Just gave it a try. Not too successful in effort.

I'll try later.

Here's a link to what I was trying;

Anchor Watch | Official OpenCPN Homepage