Breaking on distance doesn't seem too useful to me really? Maybe in war games its useful. Wes said: Make the linking line appear on the map layer. And shadow the movements of the tokens, so it is out of the way and not getting selected. I would use a dumbell shape. Line connecting circles around each token. Opacity setting for the line. A setting for a break if it exceeds a specified distance. All the things I haven't thought of yet. Dumb-bell shapes as in curved lines from target to target? Suppose seems a bit excessive. Maybe making it the same colour as the icon being used. So red dot to red dots. If feasible. Hmm, I imagine maybe multiple lines from one target to others. So they could potentially mark other targets. Right now I think it has some pretty good uses for large maps and war games and helping to decide line of sight between targets and what not. The reason why I asked was because I have seen quite alot of dynamic lighting scripts and a lot of "Marking" scripts but I always felt marking via token icons was jarring, I mean in games which have a lot of marking and targeting, its useful to have things that can be tokens, Pretty sure you can potentially have a line as an image thats stretched, and give it a token name with show name plate on. So you know what the line is doing too. For example in my D&D 5E game I want to keep track of the "Bless" Spell that is coming from a cleric, by having say, 3 yellow lines connected from him to his desired targets. That way when they move about etc, it updates and follows them to that new position. Mostly it serves as a visual aid, and can look "cool" seeing visual buff lines between targets, Marked targets, or general focus of attacks for war games too.