Add a button inside a column event manager wordpress

i would like to add a button inside columns of my event manager plugin wordpress.

Someone to help pls ? thanks a lot,

Screen 1 Screen2

<table class="events-table" >
<thead>
    <tr>
        <th class="event-time" scope="col">Date/heure</th>
                    <th class="event-description" scope="col">Nom</th>
        <th class="event-excerpt" scope="col">Description</th>
        <th class="event-link" scope="col">S'inscrire</th>

    </tr>
</thead>
<tbody>    

<tr>
        <td>
            #_EVENTDATES<br/>
            #_EVENTTIMES
        </td>

        <td>
           #_EVENTNAME
        </td>
<td>
#_EVENTEXCERPT
</td>
<td>
#_EVENTLINK
</td>
    </tr>

</tbody></table>