The Object Properties can be found from View → Object properties. Here you can see all the components of a selected object. The name of the object, basic information like which layer it is in and all the components the object holds can be seen here. This will be really important once you start to edit an object's properties. Here you can also change the layer your object is in. If you have selected multiple objects this one will show all the components the objects share. You can quickly open this one up with Ctrl+P.