Order History for customers?

You can go in the joomla menu manager and create a new menu of the type hikashop order listing. That way your users will be able to access their order history.

There is no option for that yet.
You need to go in the menu Display->Custom fields and create a new custom field of the table "order" and the type "text". That will add the field on your order edition screen so that you will be able to enter a tracking number for the orders in the administration.
Then, you will have to edit the file show of the view order via the menu Display->Views and add the code:

<?php $this->fields = $fieldsClass->getFields('',$null,'order');
if(hikashop::level(2) && !empty($this->fields)){?>
<tr>
<td>
<fieldset class="hikashop_order_custom_fields_fieldset">
<legend><?php echo JText::_('ADDITIONAL_INFORMATION'); ?></legend>
<table class="hikashop_order_custom_fields_table adminlist" cellpadding="1" width="100%">
<?php foreach($this->fields[order] as $fieldName => $oneExtraField) {
?>
<tr class="hikashop_order_custom_field_<?php echo $fieldName;?>_line">
<td class="key">
<?php echo $this->fieldsClass->getFieldName($oneExtraField);?>
</td>
<td>
<?php echo $this->fieldsClass->show($oneExtraField,$this->order->$fieldName); ?>
</td>
</tr>
<?php } ?>
</table>
</fieldset>
</td>
</tr>
<?php } ?>


somewhere where you want in the file (near the end for example ?). That way, the users will see their shipping number once you entered it.