NIX - ASX/ASIC Rules

Can anyone confirm or otherwise whether it is permissable for one seller to place multiple parcels for sale at the same price. What are the regulations for this.

I remember some time back, doing same - I had a sell order in the system and then proceeded to place another one (some time later) for a different amount same stock same price. I got picked up on it.

NIX - I wonder what 243 entities picked up over 2M units in stock and now selling in the wake of two take-over bidders.