indicator that makes a black screen!

hi,

i only trade the open of m15-candles. but i have a gambling-problem. i want to solve it with a black screen. here my question: is it possible to make a black screen/delete all charts from mt4 and to show the m15-chart only for two minutes at 15, 30, 34 and 00?

thanks!

hmm, no answers yet....please write also if it is impossible!

thanks ;-)