Amending User Profile to show Staff ID field in Employee Center

[StewartFletcher]

I'm trying to get the Staff ID field (employee_number) information pulling through to the User Profile widget on Employee Center. I'm following the same format as the location, business unit etc that shows currently, but it either won't show up, or shows the option but blank.

This is the HTML I'm looking at in that widget -:

<div class="col-xs-12 col-sm-8">
<h2>{{data.name}}</h2>
<p ng-if="::displayField('sys_user', 'company', true)"><strong class="pad-right">${Company}</strong><sp-editable-field editable-by-user="data.isLoggedInUsersProfile" table="sys_user" table-id="data.sysUserID" field-model="data.sysUserModel.company"></sp-editable-field></p>
<p ng-if="::displayField('sys_user', 'title', true)"><strong class="pad-right">${Title}</strong><sp-editable-field editable-by-user="data.isLoggedInUsersProfile" table="sys_user" table-id="data.sysUserID" field-model="data.sysUserModel.title"></sp-editable-field></p>
<p ng-if="::displayField('sys_user', 'department', true)"><strong class="pad-right">${Department}</strong><sp-editable-field editable-by-user="data.isLoggedInUsersProfile" table="sys_user" table-id="data.sysUserID" field-model="data.sysUserModel.department"></sp-editable-field></p>
<p ng-if="::displayField('sys_user', 'location', true)"><strong class="pad-right">${Location}</strong><sp-editable-field editable-by-user="data.isLoggedInUsersProfile" table="sys_user" table-id="data.sysUserID" field-model="data.sysUserModel.location"></sp-editable-field></p>
<!-- <p ng-if="::(data.liveProfileID && displayField('live_profile', 'short_description', true))"><strong class="pad-right">${Bio}</strong><sp-editable-field editable-by-user="data.isLoggedInUsersProfile" table="live_profile" table-id="data.liveProfileID" field-model="data.liveProfileModel.short_description"></sp-editable-field></p>-->
</div>

I don't want the field to be editable, but it needs to display that users Staff ID.

Any help at all? I've tried replicating exactly from location, and changing the name and pointing it at the right field, but it doesn't work.