Hi Kadambari,
You can find the detail of the component you are using by double clicking on the object and then click on the help button. You will get the details of the component from there itself.
In addition to the information in help section, you can get some basic information on how a component can be used in a system by taking a look at the OptiSystem samples. There is a folder named “component sample files” where you can find examples from different components, sorted by their library.