Change widget display

Hi, you can do that with CSS. Just include a custom CSS file using the css_style parameter, download and tweak the default style, blocks classes are found from line 525:

nlp-defaultStyle.css

.nlposts-block-container .nlposts-block-item {
    float:left;
    display:block;
    width:45%;
    margin-left: auto;
    margin-right: auto;
    margin-right: 5px;
}

Take a look at the width which is 45% by default, you’ll have to change that the desired value, maybe to 30%, if you do so, then it’d look like:

.nlposts-block-container .nlposts-block-item {
    float:left;
    display:block;
    width:30%;
    margin-left: auto;
    margin-right: auto;
    margin-right: 5px;
}

Replace the default style rule by this one, save the CSS file with a custom name nlp-jakub.css for example, put the file into your WordPress active theme folder /wp-content/themes/my-theme/nlp-jakub.css, finally in your shortcode or widget:

// Shortcode
[nlposts ....other options.... css_style=nlp-jakub]

// Widget
Put nlp-jakub into the CSS Stylesheet field

I hope this helps.
José SAYAGO