Bill (Do Not Kill) said: Since sight range is a token property, you'll need a macro that edits the actual token properties, probably using the token-mod Mod script. I'm not sure what you mean by 'sight range', but there's no vision setting for 'maximum view distance'. If the token is the only light source (either through emitted light or nightvision), then you can effectively create a maximum distance, but otherwise any light source that has line of sight will be viewable by the token. <a href="https://wiki.roll20.net/Token_Features#Dynamic_Lighting" rel="nofollow">https://wiki.roll20.net/Token_Features#Dynamic_Lighting</a> Typically for Fog Cloud or Darkness or other vision blocking spells, the most common method is to create a token for the spell effect that is placed on the Object Layer above everything else so that it blocks vision in its area.