How to add news ticker plugin (Rapid Nice News Ticker)

I’m trying to add this news ticker but I can’t figure out how.

These are the instructions:

1. Upload rapid-nice-news-ticker to the /wp-content/plugins/ directory
1. Activate the plugin through the ‘Plugins’ menu in WordPress
1. Place <?php do_action('[news_ticker]'); ?> in your templates

ShortCodes

General Ticker

[news_ticker id="1"]

Ticker form category

[news_ticker id="2" category="1"]

Speed change (.10 is default)

[news_ticker id="3" speed=".20"]

Ticker Form Custom Post

[news_ticker id="4" posttype="custom-post-name"]

Ticker Form Custom Post with category

[news_ticker id="5" posttype="custom-post-name" cat_slug="taxonomy_name" cat="your-category-name"]

But when I go to my templates (Dashboard > Appearance > Editor) there are so many “templates.” I’ve tried to add it in different ones but it doesn’t seem to work. Not sure if trying to add it in the wrong place or even in the right way. The plugin’s instructions are vary vague and the creator doesn’t have contact info on their site.

Using Magazino theme, site is glasscity.ca. Thanks