i'm quiet disappointed with stencyl, like nobody even replies....
If nobody replies to you its mostly either one of the following causes
1) you ask vague questions. Refer to the how to ask effective questions for tips.
2) most people are on holiday =) dont forget that the forums are runned by users, not dedicated 24/7 support groups.
As for the original question. I believe there is an extension for it if you have absolutely no clue whats going on. But if you have a clue, and you want to check some values, i just print it on my screen =)