How do I add an action to always take place after an event?

when this happens:
    if(something):
          do 1
    else if(someotherthing):
          do 2
    else:
          do 3[/code:1l9x6ydl]

Now I want to add an action to take place in the end. So I put an action in the end.

[code:1l9x6ydl]when this happens:
    if(something):
          do 1
    else if(someotherthing):
          do 2
    else:
          do 3
    do 4[/code:1l9x6ydl]

But what I've noticed till now in Construct 2 is I have to do this :-

[code:1l9x6ydl]when this happens:
    if(something):
          do 1
          do 4
    else if(someotherthing):
          do 2
          do 4
    else:
          do 3
          do 4[/code:1l9x6ydl]

How do I just put an action in the end using Construct 2? I tried using a blank sub-event but that made the code act weirdly.