How do I make achievements in construct 3??

How do I make achievements in construct 3?? I am currently working on a game, and do not know how to make text appear in corolation to a level.

There are various ways you can create in game achievements, one of the best ways is to create an array.

You can add to a cell array, for example, every level, every enemy killed, score etc. You can then set the achievement to unlock from a locked state when x is reached in that cell

Thanks, that solves some of my problems. However, now I have a new problem I want to make an acheivement that only comes up once in a specific level, like an acheivement when you break gold in, say level 16, but not in the following levels. How do I do that?

P.S. I've tried the 'On start of layout' function, but it adds one every time you die, so It isn't viable unless you do not or cannot die in a level.

Thank you!