code: public AbstractPrintQuery addSelect(final SelectBuilder... _selectBldrs)
          throws EFapsException
      {
          if (isMarked4execute()) {
              for (final SelectBuilder selectBldr : _selectBldrs) {
                  addSelect(selectBldr.toString());
              }
          }
          return this;
      }
docs: Add an select to the PrintQuery. A select is something like:
  <code>class[Emperador_Products_ClassFloorLaminate].linkto[SurfaceAttrId].attribute[Value]</code>
  <br>
  The use of the key words like "class" etc is mandatory. Contrary to
  {@link #addPhrase(String, String)} the values will not be parsed! The
  values will not be editable.
  
  @param _selectBldrs selectBuilder to be added
  @return this PrintQuery
  @throws EFapsException on error