MS Power Point
To select more than one slide in the presentation

Ctrl + Click on slide
Just Click on slide
Shift + Click on slide
Alt + Click on slide

ANSWER DOWNLOAD EXAMIANS APP

MS Power Point
How to create additional Guide Lines?

by holding Alt key, click on existing Guide Line and drag
by holding Ctrl key, click on existing Guide Line and drag
by holding Ctrl + Alt key, click on existing Guide Line and drag
Additional Guide Lines cannot be created

ANSWER DOWNLOAD EXAMIANS APP