Revit 2017 - Cannot select floors after creating them

[Anonymous]

Hi.

I am a just start studying Revit, and I just start to following the tutorial below;

https://youtu.be/_NGfP1Oq0to

However, when I select Floor > Floor: Architectural to draw sth,  and finished edit mode, 

I cannot even find my floor that I just drew it. 

But, after I clicked 'Reveal Hidden Elements' button at the bottom side, it shows me this image.

I can't even follow really basic tutorial... How can I solve this?

[ToanDN · Accepted solution]

Select them under Reveal Hidden elements mode and Unhide Element from the Ribbon or from teh right click context menu.  By the way, the ones with heavy corners are Structural Floors, not Architectural Floors.

[Sahay_R]

Also - type VG>>Model Categories, and make sure that Floors are checked.

Finally, make sure this looks the same as my picture -