From WYSIWYG view the gallery looks name ordinary WordPress gallery so you can well add and remove pictures the way you are used to..
Upload the plugin contents to the wp-content plugins directory.
Activate the plugin through 'Plugins in WordPress Admin.
If you want to finetune the application gallery you can add some parameters to the gallery shortcode from text editor..
Any you will add lightbox to the native wordpress gallery will work for Responsive Gallery Grid..
The images to the not right and center of the grid are cut of when I subject over them.
If that's option you will just disable skip or use positive scaling. by setting the part to value between 0.5 and 1 in the schortcode...
And hate gallery plugins that add required code and image categories in page.
Browse the code recheck out SVN repository or subscribe to the development log RSS....
2.1.1 Jan 18 2018. get rid of high z-indexes for subject as they were consecutive modal windows in some cases.. patch PHP warning problem with pligins and topic that call post gallery hook with the additional 3th paramater $instance...
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