I figured out that one of the easiest way to store simple data are probably SharedPreferences, but it won't work in RAD Studio XE6 with C++. Do I really have to make a database for such trivial things like text area and few checkboxes? Please help me, I'm the beginner.
Ok, no one could answer me, but I have found an answer myself. I used ClientDataSet item and now I can make fields with it and export any string, int, boolean etc. to the *.xml file.