CommonScreens.xml :

[vijay Si]

Hi

1) What does this line of code imply in

CommonScreens.xml file :
<set field="activeApp" value="catalogmgr" global="true"/>

2) How and where do i set permissions for my application

i am reffering to following piece of code

<section>
                            <!-- do check for CATALOG, _VIEW permission -->
                            <condition>
                                <if-has-permission permission="CATALOG"
action="_VIEW"/>
                            </condition>


Where is _VIEW permission set for CATALOG.

Thanks..