@krystian yes, that will makes trades, given that the conditions are true in regards with what you want to do with it.
I would search the forums for other projects to see how other people have used blocks. You can copy and paste parts of other persons projects into your own window so that you can figure it out on your own.
I'd start from the beginning too. Use the no trade, the 1 condition, the once per bar, and a buy now block. See what that does, then add a 2nd condition, retest and observe. If you would like to watch exactly what your conditions are doing you can use the Trace Activity block, that will help find any problems too. If what you need is someone to stand over you shoulder and teach you I think L'andorra does that kind of stuff as a paid service.