If the order opens or increases a position, the minimum volume from the current working and market volumes will be selected. For example, if the working volume is 10 and the first seller's volume is 3, then a traded amount of 3 will be sent.
If the order closes a position, the minimum volume from the position's current working and market volumes will be selected. For example, if a position of 5 is open, the traded amount is 10, and the first buyer's volume is 1, then 1 will be sent.
Mode: Place Level
Default key: "L"
This key sets a level in the exchange order book. To set a level, hover the cursor over the order book and hold down "L". A message "Level" will appear. Click on the necessary price. After setting the price level, the date when the level was set will appear.