Question: I know that in magento you can turn on path hints to find out which file you want to edit in order to edit the template, however, right now I work with a website that has a lot of users on the website all the time, so wondered if it is possible to turn on the path hints for admin only. Is this doable? 
Because it is no good to show customers the path hints as well as it is also not secure

Answer: 
I think you can use dependancy concept for this . 

Suppose your module be Yoursite\_Yourmodule. Then use the following code in the location `app/etc/Yoursite_Yourmodule.xml`

```
<config>
    <modules>
        <Yoursite_Yourmodule>
            <active>true</active>
            <codePool>local</codePool>
        </Yoursite_Yourmodule>
        <Mage_Review>
            <depends>
                <Yoursite_Yourmodule />
            </depends>
        </Mage_Review>
     </modules>
</config>

```

What this code does is, it will make the module Mage\_Review depends on your module and hence your module will load bofore the core module does. This will make your observer listen first .

I think this may solve your problem.
As noted by programmer\_rkt, dependencies are one way to handle observer processing order by affecting the order in which the configuration files are merged.

Another strategy would be to take the loaded product collection, reset it, and unshift your sort order onto it:

```
$coll->clear()->unshiftOrder(/*your params*/);

```