One click but triggers two condition

I have something like that

(Event) Click:

-> (Action) Set a = 1

(Event) a = 1

    (Sub-event) Click:

        (Action)Command list 1

When I click, both a = 1 is set and Command list 1 is executed.

How can I make only one task to run at one moment.

Thanks in advance

Events are executed top-to-bottom, so you could try moving the bottom event to the top.

Thank you Ashley

I have a code background, so basically is there any { } to embrace a code packet in Construct 2 that only allow one block to do at one time.

Best regards

Events and sub events are like {}.

If the condition(s) of the top-level event is/are true, it will then test the conditions for the sub events of that event.

And you can have other sub events nested in that as well.

That's how events work.

You might also want to check the groups that you can activate/deactivate from a tick to another.

Thank you Kyatric