Added some more hooks to the page editing pipeline. It should now be possible to add controls to the page editor, send the data from them out to the server, and process them on the server side.
<!-- VAR acl_field_begin -->
<div class="tblholder">
<table border="0" cellspacing="1" cellpadding="4" style="width: 100%;">
<tr>
<th></th>
<th style='cursor: pointer;' title="Click to change all columns" onclick="__aclSetAllRadios('i');">{lang:acl_lbl_field_inherit}</th>
<th style='cursor: pointer;' title="Click to change all columns" onclick="__aclSetAllRadios('1');">{lang:acl_lbl_field_deny}</th>
<th style='cursor: pointer;' title="Click to change all columns" onclick="__aclSetAllRadios('2');">{lang:acl_lbl_field_disallow}</th>
<th style='cursor: pointer;' title="Click to change all columns" onclick="__aclSetAllRadios('3');">{lang:acl_lbl_field_wikimode}</th>
<th style='cursor: pointer;' title="Click to change all columns" onclick="__aclSetAllRadios('4');">{lang:acl_lbl_field_allow}</th>
</tr>
<!-- ENDVAR acl_field_begin -->
<!-- VAR acl_field_item -->
<tr>
<td class="{ROW_CLASS}">{FIELD_DESC}</td>
<td class="{ROW_CLASS}" style="text-align: center;"><input type="radio" value="i" name="{FIELD_NAME}" {FIELD_INHERIT_CHECKED} /></td>
<td class="{ROW_CLASS}" style="text-align: center;"><input type="radio" value="1" name="{FIELD_NAME}" {FIELD_DENY_CHECKED} /></td>
<td class="{ROW_CLASS}" style="text-align: center;"><input type="radio" value="2" name="{FIELD_NAME}" {FIELD_DISALLOW_CHECKED} /></td>
<td class="{ROW_CLASS}" style="text-align: center;"><input type="radio" value="3" name="{FIELD_NAME}" {FIELD_WIKIMODE_CHECKED} /></td>
<td class="{ROW_CLASS}" style="text-align: center;"><input type="radio" value="4" name="{FIELD_NAME}" {FIELD_ALLOW_CHECKED} /></td>
</tr>
<!-- ENDVAR acl_field_item -->
<!-- VAR acl_field_end -->
<tr>
<td colspan="6" class="row3">
{lang:acl_lbl_help}
</td>
</tr>
</table>
</div>
<!-- ENDVAR acl_field_end -->