I need to create effects on impact with item and then get the effect wear off after some time.
You can add the Fade behavior to it
Questo - are you talking about the built in effects or thing like using particles to simulate smoke (for example)?
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Couldn't resist having a quick play. Hope it helps.
I meant the effects that can be set for whole layer.
slight edit to capx to add layer fx.
Use a variable to count the time. Like
On collision: set variable to 100
Every tick set variable to: clamp(variable-(60*dt),0,100)
Then you can set your effect in relation to this timer.