Basic NextGEN Gallery Help

Hi – I have version 2.1.0 of NextGEN Gallery installed. My site is not published so I am not sharing a link to it. I have no experience using WordPress and am struggling with two very basic things. Any assistance would be greatly appreciated!

First – I have created two galleries but don’t know how to change the code to get them both to display because I don’t know how to find the “IDs” for each of them. I am displaying one of them twice as a placeholder – here is what the code for the webpage looks like:

<h4>Our commercial projects:</h4>
<img class=”ngg_displayed_gallery mceItem” src=”http://xxx.com/index.php/nextgen-attach_to_post/preview/id–65&#8243; alt=”” data-mce-placeholder=”1″ />
<h4>Our residential projects:</h4>
 
<img class=”ngg_displayed_gallery mceItem” src=”http://xxx.com/index.php/nextgen-attach_to_post/preview/id–65&#8243; alt=”” data-mce-placeholder=”1″ />

So obviously, the one gallery is ID 65 but I don’t know where to find the ID for the second gallery so I can change the ID in the code … can you please help me with the navigation to find out the ID for the second gallery? (I’m going to add a third one soon too!)

My second question is that I would like the galleries to show as slideshows instead of “pictures with back and next under them” making the visitor have to scroll through them. all. I know this can be done but have no idea where to start! Even if you could point me to a tutorial, that would be of great assistance.

Thank you!

https://ww.wp.xz.cn/plugins/nextgen-gallery/