hi

i would ask if there a way to put a console comand like "/timescale 0.5" into a value of a trigger, somethink like this
"Press and hold F to change the timescale to 0.5"

ModVar( "timescale", 0.5 );

Use the trigger like normal then once the trigger is activated use this:

ModVar( "timescale", 0.5 );

Haven't actually used this but it seems its something people use for their anti-cheat to disable cheats like god by setting them to 0.

and where in radiant i have to put it?

function init() // Initialization variable, call this in your mapname.gsc to start the script.
{
	// Do whatever you would need to do here, not required for this.
	thread GetTrigger(); // Calls the function while threading it so multiple functions can be executed at the same time.
}

function GetTrigger() // Function where all code for what you are currently doing is called.
{
	trigger = GetEnt("triggertargetname", "targetname") // Replace "triggertargetname" with whatever you put in the targetname kvp in radiant.

	// You would want a while loop here if you want the trigger to be able to be activated more than once.

	trigger waittill("trigger", player); // Waits for the trigger to be activated, player isn't needed but is useful.
	ModVar("timescale", 0.5); // Sets the timescale to 0.5
}

You won't be able to do anything special inside radiant. The way all triggers work is they are included inside scripts.

Here is an example:

function init() // Initialization variable, call this in your mapname.gsc to start the script.
{
	// Do whatever you would need to do here, not required for this.
	thread GetTrigger(); // Calls the function while threading it so multiple functions can be executed at the same time.
}

function GetTrigger() // Function where all code for what you are currently doing is called.
{
	trigger = GetEnt("triggertargetname", "targetname") // Replace "triggertargetname" with whatever you put in the targetname kvp in radiant.

	// You would want a while loop here if you want the trigger to be able to be activated more than once.

	trigger waittill("trigger", player); // Waits for the trigger to be activated, player isn't needed but is useful.
	ModVar("timescale", 0.5); // Sets the timescale to 0.5
}

^1 trigger waittill
^1----------------^
^1ERR(0) scripts/zm/zm_les_planes.gsc (339,17) in "gettrigger()" : syntax error, unexpected TOKEN_WAITTILL, expecting TOKEN_LEFT_PAREN : 	trigger waittill 

i get this error

^1 trigger waittill
^1----------------^
^1ERR(0) scripts/zm/zm_les_planes.gsc (339,17) in "gettrigger()" : syntax error, unexpected TOKEN_WAITTILL, expecting TOKEN_LEFT_PAREN : 	trigger waittill 

trigger = GetEnt("triggertargetname", "targetname")

trigger = GetEnt("triggertargetname", "targetname");

now its says me "Not Available"

now its says me "Not Available"