1. How is it possible to add own controls to a table page as shown in the screenshot (point 1)? Can someone provide a code sample please?
   
2. Is it possible to add more tool items on the right hand side (point 2.) and open/start certain activities depending on what page is opened?
   
3. How is it possible t hide the outline tree as shown in point 3. ?
   

1.
I remember we have discussed this in one of your first post: Complete Scout Newbie. Personally I do not know how this is done. I will ask Joszef if he is ready to share some code.

2.
I think you are looking for ToolButton. In one of our application we have a lot of those tools buttons.



Just add them with the Scout SDK: Client > Desktop > Tools > "New Tool Item...". Depending on what you need you can add a:
* ToolButton: A Button extending AbstractToolButton
* FormToolButton: A Button extending AbstractFormToolButton.

3.
I think in the Left Columns you have highlighted you have two forms.
On the top you have the page tree.
On the bottom you have an additional Form opened as view.

With the DisplayViewId property you can manage where the Form will be opened as View (DisplayHint should be DISPLAY_HINT_VIEW).

If you look at the DefaultOutlineTreeForm the DisplayViewId is VIEW_ID_OUTLINE (which is mapped to North-West).

So if you open a second form as View and open it as VIEW_ID_W (West) or VIEW_ID_SW (South West) it will appears bellow the outline tree Form.

Are these toobuttons used globally then, no matter which tablepage is active. E.g. if I have a Search-Toolbutton and I click there, I want to open the search form corresponding to the active tablepage. How can this be achieved?

@Order(100.0)
public class MyFormButton extends AbstractFormToolButton<MyForm> {

  @Override
  protected String getConfiguredText() {
    return TEXTS.get("MyForm");
  }

  @Override
  protected void execStartForm() throws ProcessingException {
    MyForm myForm = new MyForm();
    myForm.startModify();
    
    setForm(myForm);
  }
}

@Override
protected void decorateForm(MyForm f) {
  f.setAutoAddRemoveOnDesktop(false);
  f.setDisplayHint(IForm.DISPLAY_HINT_VIEW);
  f.setDisplayViewId(IForm.VIEW_ID_S);
}

@Order(200.0)
public class SearchToolButton extends AbstractFormToolButton<ISearchForm> {

  @Override
  protected String getConfiguredText() {
    return TEXTS.get("Search");
  }
}

@Override
protected void execPageSearchFormChanged(IForm oldForm, IForm newForm) throws ProcessingException {
  SearchToolButton b = findToolButton(SearchToolButton.class);
  if (b == null) {
    return;
  }

  if (newForm != null && !(newForm instanceof ISearchForm)) {
    throw new IllegalArgumentException("A search form must be of type ISearchForm! " + newForm);
  }
  b.setForm((ISearchForm) newForm, true);

  if (newForm != null) {
    if (getOutline() != null && getOutline().getActivePage() instanceof IPageWithTable<?>) {
      IPageWithTable<?> tablePage = (IPageWithTable<?>) getOutline().getActivePage();
      if (tablePage.isSearchRequired() && !tablePage.getSearchFilter().isCompleted()) {
        b.setSelected(true);
      }
    }
  }
}