energylink/public/app/plugins/datasource/prometheus/partials/config.html

<datasource-http-settings current="ctrl.current" suggest-url="http://localhost:9090">
</datasource-http-settings>

<div class="gf-form-group">
	<div class="gf-form-inline">
		<div class="gf-form">
			<span class="gf-form-label">Scrape interval</span>
			<input type="text" class="gf-form-input width-6" ng-model="ctrl.current.jsonData.timeInterval" spellcheck='false' placeholder="15s"></input>
			<info-popover mode="right-absolute">
                Set this to your global scrape interval defined in your Prometheus config file. This will be used as a lower limit for 
                the Prometheus step query parameter.
			</info-popover>
		</div>
	</div>
</div>