Steps to create and use User Preferences

• Create a file called <your_mod_prefix>_menu.inc in mod/pref/ directory

example: ims_menu.inc

• add menu items using the menu functions. To avoid conflicts of the actions prefix your module to the action (i.e. <mod_prefix>_<action>)

<?php
shn_mod_menuitem("ims_config",_("Multiple Incident Management"));
?>

 NOTE: remember that you **DO NOT** need to include the library

• Create a file called <your_mod_prefix>_main.inc in mod/pref directory
• Create the functions such as shn_pref_<mod_prefix>_<action>

function shn_pref_ims_config()
{
 ...
}

 NOTE: You may create files inside the mod/pref but make sure you are prefixing them with the <mod_prefix> 

• Use shn_user_pref_update to manage your user preferences

shn_user_pref_update(<module_id>,<key>,<value>,[<delete flag>]);

 NOTE: If your preference is not specific to any particular module use 'base' for the module_id
       if you set delete flag the preference will be deleted, remember setting preference to '' or null may be differ from deleting the preference

• You have the direct access to the session so, you can access them $_SESSION['user_pref_<mod_prefix>_<key>']