Working with working set in eclipse

Working with working set in eclipse:

Let assume an application made of many related  eclipse (for example a gui project many depends on many projects of back end layer). To have a working compilation no choice, you have to import all projects in eclipse. But it is noising have so many projects you don’t work to on project explorer only for compilation needs (see example). To avoid that problem you may use eclipse working set which allows you to have a restricted view of only projects of your interest (other projects still live behind)

See example by pictures:

Step1 = 2 projects in my workspace -> select working set menu

Step2= create a new working set

Step3 = select projects belonging to working set

Step4 = from fist menu (see figure for step 1) select working set you want work to