// Select the current Module
Module m = current; 

// Get first Object of Module
Object firstObject = first(m);

// Get last Object of Module
Object lastObject = last(m);

// Get current selected module (highlighted row in Module)
Object currObj = current

// Get first Child of the Object (which is below currObj - 
// i.e. whenn currObj is a Headline)
Object firstChild = first(currObj);

// Get last child of the objects below currObj
Object lastChild = last(currObj);

// Get the parent of currObj
Object parentObject = parent(currObj);

Object currObj = current;

// Select the previous object independent from the object hierarchy
Object previousObj = previous(lastChild);

// Select the next object independent from the object hierarchy
Object nextObj = next(lastChild);

Object currObj = current;

// Selection of the first sibling in the same hiararchy and hierarchy level
Object firstSibling = first sibling (currObj);

// Selection of the last sibling in the same hiararchy and hierarchy level
Object firstSibling = first sibling (currObj);