There is a script that ships with Adobe InDesign called SelectObjects.jsx – run that script and it will display a user interface asking what you want to select. Uncheck what you don’t want to select and run the script, and then all specific items (on a spread only) will be selected.
If you don’t want to uncheck boxes all the time, open the script in a text editor such as text wrangler and look for the following lines of code:
var myRectanglesCheckbox = checkboxControls.add({staticLabel:”&Rectangles”, checkedState:true});
var myEllipsesCheckbox = checkboxControls.add({staticLabel:”&Ellipses”, checkedState:true});
var myPolygonsCheckbox = checkboxControls.add({staticLabel:”&Polygons”, checkedState:true});
var myGraphicLinesCheckbox = checkboxControls.add({staticLabel:”&Graphic Lines”, checkedState:true});
var myTextFramesCheckbox = checkboxControls.add({staticLabel:”&Text Frames”, checkedState:true});
var myGroupsCheckbox = checkboxControls.add({staticLabel:”G&roups”, checkedState:true});
var myImagesCheckbox = checkboxControls.add({staticLabel:”&Images”, checkedState:true});
var myPDFsCheckbox = checkboxControls.add({staticLabel:”P&DFs”, checkedState:true});
var myEPSsCheckbox = checkboxControls.add({staticLabel:”EP&Ss”, checkedState:true});
to make any checkbox unchecked, change the checkedState:true to checkedState:false