i guess u probably mean cl_mouse_max_distance
U can change it from f1 writting
cl_mouse_max_distance [number]
Default is 400, less than that will make the "circle" smaller, and more will make the "circle" bigger :)
also entities is just a recolor of the original, and its not perfect cuz unfreeze and undeep conceal eachother if theyre in the same tile but im too lazy to fix it (edited)