As I said above, any block that is on top of other blocks (nothing is connected above, at least one block is connected below) under "on Tick" will be executed on every tick. In other words, you can have multiple groups of blocks ane they all will be executed in the same tick one after another. What will be in these groups of blocks... your choise. It can be Condition -> Buy new trade, it can be Condition -> Close trades.
D