2 problems to create a simply car game (please help me) :(

I have two big problems And I don't know what doing:

First problem - I don't know how to make a system:

left click on object on first layout -> go to second layout -> create a sprite (other than first)

Second problem - I don't know how to make a choosing system:

Choose 1 kind of car from 12 posibilities -> choose 1 kind of weather from 3 posibilities -> example ferrari on sunset track

The second problem is a long ways away from where you are right now with the first one. I'd say the best thing you can do is to start learning the free version of Construct 2, it has a lot of excellent and free tutorials in the Tutorials section here: https://www.scirra.com/tutorials

Construct Classic and Construct 2 are very similar in events, but it'd be better to make your game in HTML5 probably anyway with Construct 2