I suspect that the “Inserts” module is currently hidden for Instrument Tracks…
Right-click in a blank area of the Inspector for the Instrument Track, where you’ll get a pop-up where you can set which modules will be visible. Note that the settings for the different track classes (Instrument, MIDI, Audio etc.) are independent.
Now, if we only knew your used software…
It´s probably not the same software, that is used in the tutorial video, is it…?
The simple explanation could be, your version does not support this feature. Seems you should simply check the fine manual…