How to find accurate IMovie instructions?

Hi, NewMacP,

Here's a link to an online help menu with a good search feature. It gives step-by-step instructions for use of the features of iMovie 10.

https://help.apple.com/imovie/mac/10.1/

-- Rich

There are also numerous video tutorials on YouTube showing exactly how to use iMovie.

Here's a list of a few.

https://www.youtube.com/results?search_query=use+imovie

I haven't checked them out so some may be poor whilst others may be excellent.