Help! How to set initial number in the rack?

Hi. I have encountered few problems here.

1. Can someone please teach me how to set initial number in the "rack"? As in at the start of the simulation, it has alr certain number of box on the rack.
2. How do I remove certain boxes(the number I want, I can set it) from the rack? Can I do that?

Thank you so much.

Hi.

To start the rack with a certain number of flow items, I usually connect a source to the rack to create the initial content. I use an arrival schedule with a single arrival at time=0 and with the desired number of flow items.

if I want to retrieve a specific box from the rack (based on itemtype, labels or such), I usually create a messagetrigger which looks through the flow items in the rack and releases them if they match the criteria. Use releaseitem() for this. The 'Send To Port' field on the rack and the Pull Requirement field on the destination probably also have to be set up as well.

There may be better ways of doing it, but this is what I normally do.

Hope it works for you...