Thank you both for your comments.
I am using the following to open the modal.
<a href="#" class="btn btn-primary" dmx-on:click="modal1.show();modal1.data_detail1.select(id)">Learn more</a>
The modal itself is below.
<div class="modal fade hidden" id="modal1" is="dmx-bs5-modal" tabindex="-1">
<div class="modal-dialog modal-xl modal-dialog-scrollable" role="document">
<div class="modal-content">
<div class="modal-header bg-primary text-light">
<h5 class="modal-title">{{data_detail1.data.organisation}}</h5>
<button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
</div>
<div class="modal-body">
<div class="container" is="dmx-data-detail" id="data_detail1" dmx-bind:data="api_togaf.data.atcRegister" key="id">
<p>{{data_detail1.data.about}}</p>
<div class="row">
<div class="col">
<div class="table-responsive">
<table class="table table-striped table-sm">
<tbody>
<tr>
<th scope="row">Certification Program</th>
<td>TOGAF® Certification Portfolio</td>
</tr>
<tr>
<th scope="row">Course Name</th>
<td>{{data_detail1.data.courseName}}</td>
</tr>
<tr>
<th scope="row">Course Version</th>
<td>The TOGAF® Standard, 10th Edition</td>
</tr>
<tr>
<th scope="row">Course Types</th>
<td>
<p dmx-html="{{data_detail1.data.courseTypes.replace(',', '<br>')}}" </p>
</td>
</tr>
<tr>
<th scope="row">Delivery method(s)</th>
<td>{{data_detail1.data.deliveryMethods.split(',')}}</td>
</tr>
<tr>
<th scope="row">Registration status</th>
<td>{{data_detail1.data.status}}</td>
</tr>
<tr>
<th scope="row">First Accredited</th>
<td>{{data_detail1.data.firstAccredited}}</td>
</tr>
<tr>
<th scope="row">Re-Accreditation Date</th>
<td>{{data_detail1.data.reAccDate}}</td>
</tr>
<tr>
<th scope="row">Conformance Statement</th>
<td><a href="" dmx-bind:href="data_detail1.data.conformanceDeclaration"><i class="far fa-file-pdf fa-3x"></i></a></td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</div>
</div>
<div class="modal-footer">
<a href="" dmx-bind:href="data_detail1.data.webSite" class="btn btn-primary" id="website">Visit {{data_detail1.data.organisation}}</a>
<button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close</button>
</div>
</div>
</div>
Thank you.
Kind regards,
Brian