This question has been answered by deyand. See the first response.
[[!SimpleSearchForm? &landing=`21`]]
<section id="search-results"> <h4>Search Results:</h4> [[SimpleSearch? &containerTpl=`mySearchContainerTpl` &tpl=`mySearchResultsTpl` &ids=`3` //it's my Catalog Resource ID &minChars=`3` &depth=`10` &perPage=`10` &limit=`10`]] </section>
<p class="sisea-results">[[+resultInfo]]</p> <div class="sisea-results-list"> [[+results]] </div> <div class="sisea-paging"><span class="sisea-result-pages">[[%sisea.result_pages? &namespace=`sisea` &topic=`default`]]</span>[[+paging]]</div>
<div class="sisea-result"> <!-- tpl.msProducts.row--> <ul class="search-products-row"> <li class="products-list"> <a href="[[~[[+id]]]]"> <div class="image-wrapper"> <img class="items" src="[[+image:phpthumbof=`w=180&h=180`&`zc=1`]]" alt="[[+pagetitle]]"/> </div> <div class="products-details"> <div class="title"><h4>[[+pagetitle]]</h4></div> <div class="price"><h4>[[+price]] EUR</h4></div> </div> </a> </li> </ul> <div class="extract"><p>[[+extract]]</p></div> </div>