I replied in your other topic concerning this question and I said the same as zenox98 - and offered 2 links to tutorials you should work through.
> What is a capx? and how to use this Score.capx from Lordshiva1948?
Okay, I suggest before you do anything... read the manual
Do the example games, don't just look at it or copy and paste. I want you to recreate it line by line.
All new folks say, but that isn't what I want to build. Understand that they cover the basics, and the basics is what you use to create any game. for example in the first one shows you how to use text and global variables i.e score
The example from lordshiva1948 requires latest stable release and a external plugin - so it isn't going to help you. Do the tuts I linked to, they have all the basics, and the answer to your question(s).
Roll up your sleeves and learn the tool (construct2) it is a fantastic program that rewards those who spend time learning how to use it.