Add specific media to display gallery

How to create galleries with selected items. Few ways:
1) Go to Gmedia Library -> select items in order you want them to appear -> click “# selected” button dropdown and choose “Quick gallery from selected” -> in popup set Gallery Name and choose module/preset.

2) Go to Create/Edit Gallery -> click “Build Query” button above “Query Args” field -> in popup fill “Gmedia IDs” field. If you have selected items in Library you can click “Use selected in Library” button to automatically fill with IDs which you select in Library. Also you can set Order=ASC and OrderBy=”Selected Order”, so the order of IDs will be saved in gallery. Then click Build Query at the bottom.

P.S.: I’ll fix “Use selected in Library” button in next plugin version.

You can change Phantom thumbnail size on “Thumb Grid General” tab of module settings.
Also you can Save changed settings as default preset by clicking “Module Presets” -> “Save as Default”

Also your theme is not compatible with latest version of jQuery which is included in WP4.5.

Edit your theme’s “/wp-content/themes/responsive/core/js/responsive-scripts.min.js” file
and replace
$("a[href=#scroll-top]")
with
$("a[href='#scroll-top']")