Help trigger

[breeze 0]

I have a trigger that is checking for my helicopter height to remain under 50 foot or it displays a warning message. I was wondering two things instead of the regular game hint, in the upper right corner can I get a large flashing text in middle of screen??

Secondly can I make the trigger go off after a set time of of remaining over the height withing the parameters for a set time of 5 seconds?

Because I have second trigger that ends the game after going over 75 feet. However this trigger ends the game and I need to have some cushion of time to reduce height while traveling through hills etc. Then if it is ignored end the game.

Thanks in advance here is what I am using currently

Trigger size Zero

condition: ((getPos heli1) select 2) >= 55;

on Activation: hint "You're flying too high!";

on deactivation: hint "All good now.";

Thanks in advance guys!!