On your tutorial video 4 it's written at top LR TIMELAPSE when you are working in LR. this is confusing. Also if you are new to the software the tut: video doesnt show clearly where you are moving around with the cursor and not clear about the filter. You say click on filter but if you cant find it then click on filter here but as far as I can make out there is only on place where th filter is located on the interface in LR.
thnks!

The filters will expand, if you click on the label "filter" in the lightroom toolbar.