Readarr/UI/Settings/DownloadClient/LayoutTemplate.html

<fieldset class="form-horizontal">
    <legend>General</legend>

    <div class="control-group">
        <label class="control-label">Download Client</label>

        <div class="controls">
            <select class="inputClass x-download-client" name="downloadClient">
                <option value="sabnzbd">SABnzbd</option>
                <option value="blackhole">Blackhole</option>
                <option value="pneumatic">Pneumatic</option>
                <option value="nzbget">NZBGet</option>
            </select>
        </div>
    </div>
    <div class="control-group">
        <label class="control-label">Drone Factory</label>

        <div class="controls">
            <input type="text" name="downloadedEpisodesFolder" class="x-path"/>
            <span class="help-inline">
                <i class="icon-nd-form-info" title="The folder where your download client downloads TV shows to (Completed Download Directory)"/>
                <i class="icon-nd-form-warning" title="Do not use the folder that contains some or all of your sorted and named TV shows - doing so could cause data loss"></i>
            </span>
        </div>
    </div>
</fieldset>

<div id="download-client-settings-region" class="form-horizontal"></div>