Ok, tente isso
Client:
painel = false
function dx ()
--seu dx--
end
function opendx ()
if painel == false then
addEventHandler ("onClientRender", root, dx)
showCursor (true)
painel = true
end
end
addEvent ("open", true)
addEventHandler ("open", root, opendx)
Server:
local marker = createMarker (LocalCordenadas, "cylinder", 2, 0, 255, 255, 255)
function open (source)
triggerClientEvent (source, "open", root)
end
addEventHandler ("onMarkerHit", marker, open)