Task: I want to add Entrance Effect animation  Named "blinds"  on the presentaion slide using power point app
Steps:
click on insert button ( upward and downward arrow icon ) on pop up window to view more option at the lower left corner of the screen
choose animations option( last fourth option ) on pop up window at the lower left corner of the screen to select an animation for slide 
choose first option ( Entrance effect) on the pop up window at the bottom of the screen 
click on second option (blinds) on pop up window at the bottom of the screen