need macro when player on screen don't mana train ue

[kuhi]

last night, i was botting in a ot and i use "exevo gran mas frigo" for mana train...
i used plate set and only sds and some pots cuz ppl can make me red and YES, they made me red skull...
then i'll need a macro that when player on screen don't mana train and when nobody on screen train again
pleaseee

[Noen]

Code:

1500 {PlayerOnScreen} Creatures.PlayersOnScreen<2 Self.Mana>=1050 Self.Say(exevo gran mas frigo)