how to clear the contents of some objects when starting the down time

I want to clear or reset some objects contents when starting down timetable.
Which command can be used in the case of that?

For example, the conveyor line length 90 meter of three conveyors of 30 meter.

When it is down by timetable, all items among on two conveyors should be cleared (disappeared) and when starting again, the two conveyors start with empty and one conveyor move on the flowitems.

Anyone help me!

A couple of thoughts around what you are trying to achieve, firstly what happens in reality? The time table event could be used to close the input of the conveyor and divert the output to a sink so that the conveyor clears during the downtime (speed could also be increased) this would allow you to maintain a track of what went where and avoid getting rid or moving flow items. Otherwise these commands may help.

the destroyobject command may work for you but I'd suggest checking out the code for running it carefully You could loop through the content of the conveyor and destroy the flowitems though this will probably have a number of consequences around stats etc.

destroyobject (node thenode)
Destroys thenode
Description
This command removes the node specified as thenode from the tree. This can be used to delete objects from the model, or anywhere else in the tree.
Example
if (content(current) >= getvarnum(current,"maxcontent"))
{
destroyobject(item);
}

This destroys the object referenced by item if the content of the object referenced by current is less than the variable called maxcontent in the object referenced by current.

Move Object may be better and send the items to a sink
destroyobject (node thenode)
Destroys thenode
Description
This command removes the node specified as thenode from the tree. This can be used to delete objects from the model, or anywhere else in the tree.
Example
if (content(current) >= getvarnum(current,"maxcontent"))
{
destroyobject(item);
}

This destroys the object referenced by item if the content of the object referenced by current is less than the variable called maxcontent in the object referenced by current.

The model I try to make is the long line of two areas.
The first area is painting line and connected to next sanding area directly.
All line is 24 hours working during six days of a week.
The down time is 24 hrs from Sunday AM. 7 and operating start again Monday AM 7:00.

The flowitems on sanding line hold full until start again Monday AM 7.
But When painting line starts again Monday AM 7, it should start in empty state.

The statistics of painting line can be disregarded.
The capacity of one hour is enough for it.

Thank you.