@esalmagul you can also enable Feature Type Connections in View > Windows > Feature Type Connections to quickly connect different feature types and transformers. Hope this helps!
There is a quick trick that might be usefull also that I found on the FME training, this is the example:
This connects PublicArt to all of the neighborhood reader feature types by clicking on the red triangle going into PublicArt, holding down the CTRL key (⌘ or Shift on Mac), and clicking on each triangle coming out of the neighborhood feature types (Downtown, Mount Pleasant, Strathcona, Fairview, Kitsilano, and West End).